{"title":"Fossil Fish","description":"In Stone Fossils Paleontological Laboratory specializes in excavation and preparation of Green River Formation fossil fish, utilizing the latest technology and microscopic tools ideal for museum and gallery curated collections.","products":[{"product_id":"prepare-your-own-fossil-fish","title":"Prepare Your Own Fossil Fish","description":"\u003cp\u003e\u003cspan\u003eOur Instagram followers love to watch us prepare these specimens, and how satisfying and relaxing it is to remove the matrix away from the fossil. And now you can experience it for yourself!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis practice not exclusive to \"experienced\" fossil preparators. If you don't have \"fancy tools\" like our air abrasive machines or pneumatic chisels, do not fret! Collectors have been preparing these fossils since before electricity was a household commodity, and you can too! They used basic tools that are common in any home, you only need: pocketknife, magnifying glass, a dry brush, and time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou can get creative and try other tools such as a scalpel, pottery tools, fastener nail, BBQ skewer, engraver tools, etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDiplomystus fish approx. size range: 12\"-16\"\u003cbr\u003eDiplomystus plates can reach lengths of 20\" and widths of over 12\".\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*The p\u003cem class=\"x-el x-el-span c2-2v c2-2w c2-ch c2-17 c2-34 c2-ci c2-cj c2-3\"\u003ehotos are representative of what you will receive. No two plates are alike and each one will vary from photos in shape, size, colors, fish orientation, etc.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*\u003cem class=\"x-el x-el-span c2-2v c2-2w c2-ch c2-17 c2-34 c2-ci c2-cj c2-3\"\u003e*We do recommend children to be supervised preparing fossils. If you're using any electric\/pneumatic\/air abrasive tools we highly recommend you protect yourself with proper dust mask, safety glasses, and vacuum air ventilation. \u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Knightia","offer_id":35721561211035,"sku":"PYOKNG","price":19.0,"currency_code":"USD","in_stock":true},{"title":"Priscacara","offer_id":35721561243803,"sku":"PYOPRSKY","price":45.0,"currency_code":"USD","in_stock":false},{"title":"Diplomystus","offer_id":47697847910622,"sku":"PYODIP","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/products\/rs_w_1800_h_1800_2_6d00bd6a-1247-4496-8574-ea2f9624a501.jpg?v=1598824423"},{"product_id":"knightia-mini-fish-in-a-case-unrestored","title":"Knightia Mini Fish in a Case (Unrestored)","description":"\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eKnightia eocaena mortality, unrestored specimen\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eEocene (51.98 Million Years Ago) \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eGreen River Formation, Wyoming, USA\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIn Stone Fossils Private Quarry \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDisplay case: 4\" x 4\" \u003c\/p\u003e\n\u003cp\u003eClipped Knightia eocaena: Typically 1\" to 1.5\"\u003c\/p\u003e\n\u003cp\u003eEach fossil fish is unique, you'll receive one similar to the photo.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOrder Clupeiformes, Family Clupeidae\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe Clupeidae family has an estimated 50 modern freshwater species. Clupeidae species can lay as many as 200,000 eggs at once, allowing species to multiply quickly. Modern species are also prone to mass die offs.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe most common fish found from Fossil Lake.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe most commonly found articulated vertebrate fossil in the world.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe Wyoming state fossil.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBoth \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003eand \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. alta\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e are frequently discovered in mass mortality plates, some containing up to 100 fish per square meter. This suggests that, like their modern relatives, the \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eKnightia\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003especies were sensitive to environmental changes.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e specimens of all sizes are found in mass mortality plates, indicating this species schooled as both a juvenile and adult. The average adult size of \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e specimens is about 6 inches, though specimens as large as 10 inches have been found.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":36668435005595,"sku":"Minifishcase-nat","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/products\/20201109_132507.jpg?v=1604953877"},{"product_id":"xiphactinus-audax-monster-cretaceous-fossil-fish-niobrara-chalk-formation-kansas","title":"Xiphactinus audax | Monster Cretaceous Fossil Fish | Niobrara Chalk Formation, Kansas","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cem\u003eXiphactinus audax\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eNiobrara Chalk Formation, Kansas\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eMeasures approximately 12 feet long by 5.5 feet wide\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eXifactinus was a huge, terrifying carnivorous bony fish that hunted the Western Interior Seaway of North America during the Cretaceous period. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eWhile fossils of Xiphactinus can be found in many locations around the world from Europe to Australia, the Niobrara chalk beds of Kansas maybe the most famous and prolific locality. In fact, it was first discovered in Kansas and named by Professor Leidy in 1870. Its name means “sword ray.” Dozens of complete Xiphactinus, some over 20 feet long has been recovered along with numerous partial skeletons and thousands of fossil vertebrae.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eSpecies of \u003ci\u003eXiphactinus\u003c\/i\u003e were voracious predatory fish. At least a dozen specimens of \u003ci\u003eX. audax\u003c\/i\u003e have been collected with the remains of large, undigested or partially digested prey in their stomachs.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePLEASE CONTACT US FOR AN APPROXIMATE SHIPPING QUOTE. SPECIMEN WILL BE SHIPPED IN A COMPLIANT SHIPPING CRATE.\u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":39318399582363,"sku":"XIPHACT","price":175000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/products\/20210412_081556.jpg?v=1618237891"},{"product_id":"natural-partial-mini-knightia-fish-1","title":"Natural Mini Knightia Fish | Green River Formation","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFOSSIL FISH everyone can afford!! Get \u003cstrong\u003eone \u003c\/strong\u003emini Knightia eocaena hand selected just for you, perfect for small gifts!\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eKnightia eocaena, unrestored  specimen (has not been enhanced)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eEocene (51.98 Million Years Ago) \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eGreen River Formation \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIn Stone Fossils Private Quarry \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWyoming, USA\u003c\/span\u003e\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOrder Clupeiformes, Family Clupeidae\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe Clupeidae family has an estimated 50 modern freshwater species. Clupeidae species can lay as many as 200,000 eggs at once, allowing species to multiply quickly. Modern species are also prone to mass die offs.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe most common fish found from Fossil Lake.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe most commonly found articulated vertebrate fossil in the world.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe Wyoming state fossil.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBoth \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003eand \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. alta\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e are frequently discovered in mass mortality plates, some containing up to 100 fish per square meter. This suggests that, like their modern relatives, the \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eKnightia\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003especies were sensitive to environmental changes.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e specimens of all sizes are found in mass mortality plates, indicating this species schooled as both a juvenile and adult. The average adult size of \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e specimens is about 6 inches, though specimens as large as 10 inches have been found.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e*ACTUAL PRODUCT MAY VARY FROM PICTURE BUT WILL STILL BE A MINI KNIGHTIA EOCAENA \u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":42997709078750,"sku":"NAT-MINI-SQ","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_7832806a-223c-4681-8f11-9fecbe5581fe.jpg?v=1771363762"},{"product_id":"fossil-mini-fish-displayable-retail-plastic-free-1","title":"Fossil Mini Fish (Knightia eocaena) | Eco-Friendly | Green River Formation","description":"\u003cp style=\"text-align: center;\"\u003eNatural Knightia eocaena from In Stone Fossils Private Quarry\u003c\/p\u003e\n\u003cp\u003eReceive ONE mini fish on description card. A must have for any collector big or small. Each fish is unique and may vary on size. (Multiple fish display picture to see variations)\u003c\/p\u003e\n\u003cp\u003eEach card measures 5 ⅜\" x 3 ⅜\" and includes an authentic natural Knightia eocaena fossil fish attached to the info card.\u003c\/p\u003e\n\u003cp\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/p\u003e\n\u003cp\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/p\u003e\n\u003cp\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAnatomy\u003c\/p\u003e\n\u003cp\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePredators\u003c\/p\u003e\n\u003cp\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":43519794479326,"sku":"KNGMINICARD","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/products\/20221012_142129.jpg?v=1665606144"},{"product_id":"phareodus-testis-green-river-formation-wyoming","title":"Phareodus testis | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003ePhareodus testis\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePreparation by Carl Ulrich\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSpecimen approx. size: 6\"\u003cbr\u003e\u003cbr\u003eMatrix approx. size: 8.75\" x 7.25\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"69o43\" data-offset-key=\"agi5r-0-0\"\u003e\n\u003cdiv data-offset-key=\"agi5r-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cp\u003eIn the ancient waters of Fossil Lake, a formidable predator roamed. The Phareodus testis, a smaller but equally fascinating cousin of Phareodus encaustus. Both species boasted striking features, including pointy teeth and an impressive pectoral fin.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Bony-Tongue Fish Family\u003c\/p\u003e\n\u003cp\u003ePhareodus encaustus and Phareodus testis belong to the order Osteoglossiformes and family Osteoglossidae. Today, this family comprises 10 modern species that thrive in tropical freshwater habitats across South America, Africa, Asia, and Australia. Interestingly, these fish are mouth-brooders, where parents carefully nurture eggs and hatchlings in their mouths.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFossil Discoveries\u003c\/p\u003e\n\u003cp\u003eFossil records reveal that adult Phareodus specimens often went solo, whereas juveniles frequently gathered in large groups. This suggests that Phareodus fish schooled together during their youth before becoming solitary predators as adults. The presence of smaller fish in their jaws and stomachs confirms their predatory nature. Adaptations like rearward-oriented fins and large, sharp teeth enabled Phareodus to chase down prey with ease.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSize Comparison\u003c\/p\u003e\n\u003cp\u003eWhile Phareodus encaustus reached an impressive 30 inches in length, its smaller counterpart, Phareodus testis, measured around 20 inches. Despite their size difference, both species played vital roles in their ancient ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":44155486175454,"sku":"PHAR6-RGR#14","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/products\/20230422_094518.jpg?v=1682186121"},{"product_id":"garfish-atractosteus-simplex-green-river-formation-wyoming","title":"Garfish | Atractosteus simplex | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003eAtractosteus simplex\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 million years)\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry \n\u003cdiv data-offset-key=\"dq92o-0-0\" data-editor=\"7gitu\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"dq92o-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 32.75\" x 24.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGar fish approx. size: 26\" long\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis beautiful specimen has had absolutely no repair or restoration. An interesting feature of this specimen is that part of the spinal column is protruding through the scales. Usually you do not see the backbone on Gar fish because it remains buried beneath the scales.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eWe take great pride in hand selecting the best specimens out of our private quarry. Our Green River Formation specimens are all prepared using surgical grade microscopes and the very best fossil preparation tools available. We pride ourselves on delivering the highest quality specimens available. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGars are one of the largest and rarest fish found in the formation. They were fierce predators, having a long, narrow mouth full of sharp teeth. It's preserved as a ventral view with the dorsal skull structure exposed to the top of the specimen.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eGars - 4 Species Identified:\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eLepisosteus bemisi\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003e\u0026amp;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eAtractosteus simplex\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003e\u0026amp;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eAtractosteus atrox\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003e\u0026amp;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eMasillosteus janei\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOrder Lepisosteiformes, Family Lepisosteidae\u003cbr\u003eSeven living gar species are found in freshwaters of North America, Central America, and Cuba. Of the 4 Fossil Lake gar species, all but one are very similar to modern gars.\u003cbr\u003e\u003cem\u003eM. janei\u003c\/em\u003e lacked the long jaw and sharp teeth characteristic of modern gars. \u003cem\u003eM janei.\u003c\/em\u003e teeth were instead rounded and flat, ideal for crushing small invertebrates like snails and crayfish. This gar species is primarily found in association with these fossil invertebrates.\u003cbr\u003eOutside of the FBM, gar scales are much more common fossils than complete skeletons. The gars' characteristic, diamond-shaped scales have historically been used by humans as arrowheads and on protective breastplates. Their tough scales offer significant protection from would be predators.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7gitu\" data-offset-key=\"dil8a-0-0\"\u003e\n\u003cdiv data-offset-key=\"dil8a-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cspan data-offset-key=\"dil8a-0-0\"\u003e\u003c\/span\u003e\u003cspan data-offset-key=\"firgh-0-0\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"dil8a-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e**Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3\/4\" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"ars6n-0-0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"9tkcn-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"9tkcn-0-0\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":44184083202270,"sku":"GAR1-DS","price":22000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20230518_115541.jpg?v=1684435792"},{"product_id":"jurassic-fish-lepidotes-germany","title":"Jurassic Fish | Lepidotes | Germany","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eLepidotes sp.\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEarly Jurassic (180 MYO)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePosidonia Shale\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eHolzmaden, Germany\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 19\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 33.25\" x 23.75\"\u003c\/p\u003e\n\u003cp\u003eThis piece has had minimal restoration.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eDue to the size of this specimen, it will be shipped in an internationally compliant wooden crate. For easy wall hanging, a custom made metal hanging system is included as well.\u003c\/em\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eLepidotes (previously known as Lepidotus) is an extinct genus of ray-finned fish that inhabited warm Jurassic seas teeming with life, such as ammonites, ichthyosaurs, crinoids, and many fish species. Lepidotes body was covered in thick, enameled scales and it had a bony-armored head. Lepidotes belongs to the clade Ginglymodi, whose only living representatives are gars (Lepisosteidae).\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":44968849375454,"sku":"LPDTS","price":34000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/DSC_7334c.jpg?v=1712085773"},{"product_id":"priscacara-serrata-and-phareodus-testis-green-river-formation-wyoming","title":"Priscacara serrata and Phareodus testis | Green River Formation | Wyoming","description":"\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePriscacara serrata and Phareodus testis\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePreparation by Jim Tynsky\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003ePlate approx. size: 15\" x 12.75\" x 1.25\"\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePriscacara approx. size: 7.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePhareodus approx. size: 5.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\" data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOrder Perciformes\u003cbr\u003e\u003cbr\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species\u003cbr\u003e\u003cbr\u003eP. serrata is perhaps the most popular and sought after of the Green River Formation fish fossils. The Moronidae are a family of perciform fishes, commonly called the temperate basses. P. serrata is an uncommon find compared to Cockerellites liops, which are often confused without proper examination and preparation. P. serrata are typically larger than C. liops. The best preserved fossils are extracted from the famous \"18-inch Layer\" on either very sunny days or at night under halogen lights. The reason for this is because a fine layer of limestone shale covers the fossils, and we need to see protruding backbones cast a shadow in order to find the fossils.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"69o43\" data-offset-key=\"agi5r-0-0\"\u003e\n\u003cdiv data-offset-key=\"agi5r-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cspan data-offset-key=\"agi5r-0-0\"\u003eThis Phareodus testis, smaller than it's Phareodus encaustus counterpart, was a predator in ancient Fossil Lake. Featuring pointy teeth and a long pectoral fin. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"agi5r-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cspan data-offset-key=\"agi5r-0-0\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"69o43\" data-offset-key=\"f3kpd-0-0\"\u003e\n\u003cdiv data-offset-key=\"f3kpd-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cspan data-offset-key=\"f3kpd-0-0\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"f3kpd-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003ch3\u003eBony-Tongue Fish - 2 Species Identified:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus encaustus\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003e\u0026amp;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus testis\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cspan data-offset-key=\"f3kpd-0-0\"\u003eOrder Osteoglossiformes, Family Osteoglossidae\u003cbr\u003eLiving members of the Osteoglossidae family:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003einclude 10 modern species\u003c\/li\u003e\n\u003cli\u003elive exclusively in tropical freshwaters\u003c\/li\u003e\n\u003cli\u003efound in South America, Africa, Asia, and Australia\u003c\/li\u003e\n\u003cli\u003emouth-brooders (parents hold eggs and hatchlings in their mouths)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan data-offset-key=\"f3kpd-0-0\"\u003ePhareodus fossils:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eadult specimens usually found alone, but juveniles known from mass mortalities\u003c\/li\u003e\n\u003cli\u003eindicates that\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003eschooled as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003eoften preserved with smaller fish in their jaws and stomach, indicating they were predators\u003c\/li\u003e\n\u003cli\u003erearward oriented fins on back and underside, adaptation for speed\u003c\/li\u003e\n\u003cli\u003elarge, sharp teeth\u003c\/li\u003e\n\u003cli\u003emax known size of\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eP. encaustus\u003c\/em\u003e: 30 inches\u003c\/li\u003e\n\u003cli\u003emax known size of\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eP. testis\u003c\/em\u003e: 20 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":45272536285406,"sku":"PRSPHA-RGR#56","price":2400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20240426-113030.jpg?v=1714163002"},{"product_id":"8-5-priscacara-serrata-green-river-formation-wyoming","title":"8.5\" Priscacara serrata | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePriscacara serrata\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePreparation by Carl Ulrich\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 8.5\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 18\" x 14\"\u003c\/p\u003e\n\u003cp\u003eStand not included.\u003c\/p\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7plvv\" data-offset-key=\"d04j5-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7plvv\" data-offset-key=\"ars6n-0-0\"\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003cbr\u003e\u003cbr\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species\u003cbr\u003e\u003cbr\u003eP. serrata is perhaps the most popular and sought after of the Green River Formation fish fossils. The Moronidae are a family of perciform fishes, commonly called the temperate basses. P. serrata is an uncommon find compared to Cockerellites liops, which are often confused without proper examination and preparation. P. serrata are typically larger than C. liops.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata is a deep-bodied, laterally compressed fish exhibiting a sunfish-like profile. It typically reaches lengths of 6 to 16 inches (15 to 40 cm), though smaller and larger specimens occur. Its distinguishing features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA prominent dorsal fin with both spiny and soft-rayed sections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNotably serrated preopercle and opercle bones, which give the species its name (“serrata” meaning “serrated”)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWell-developed pectoral and pelvic fins\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata fossils are often preserved in exceptional detail, with visible fin rays, scales, and skeletal structure. These specimens are a hallmark of the lagerstätte preservation found in the Green River Formation. Entire schools of Priscacara have been found fossilized together, suggesting schooling behavior and providing insights into Eocene freshwater ecosystems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis species thrived in the subtropical, stratified freshwater lakes of the Eocene, preying on smaller fish, crustaceans, and aquatic invertebrates. It shared its habitat with other iconic Green River fishes like Knightia, Diplomystus, and Mioplosus.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":45278941020382,"sku":"SER-RGR#47","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20240508-120748.jpg?v=1715193553"},{"product_id":"huge-priscacara-serrata-and-mioplosus-labracoides-green-river-formation-wyoming","title":"Huge Priscacara serrata and Mioplosus labracoides | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePriscacara serrata and Mioplosus labracoides\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara approx. size: 12.5\"\u003c\/p\u003e\n\u003cp\u003eMioplosus approx. size: 9\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 19\" x 13.5\"\u003c\/p\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7plvv\" data-offset-key=\"d04j5-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003cbr\u003e\u003cbr\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species\u003cbr\u003e\u003cbr\u003eP. serrata is perhaps the most popular and sought after of the Green River Formation fish fossils. The Moronidae are a family of perciform fishes, commonly called the temperate basses. P. serrata is an uncommon find compared to Cockerellites liops, which are often confused without proper examination and preparation. P. serrata are typically larger than C. liops. The best preserved fossils are extracted from the famous \"18-inch Layer\" on either very sunny days or at night under halogen lights. The reason for this is because a fine layer of limestone shale covers the fossils, and we need to see protruding backbones cast a shadow in order to find the fossils\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFamily Latidae - M. labracoides\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eM. labracoides specimens:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eare characterized by 2 dorsal fins and a moderately forked, fan-shaped tail fin\u003c\/li\u003e\n\u003cli\u003eknown to reach 20 inches\u003c\/li\u003e\n\u003cli\u003ejuveniles commonly found in mass mortalities and adults found alone, indicating M. labracoides traveled in schools as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003ejuvenile and adult specimens often found preserved with smaller fish in the jaw or stomach\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":45379468525790,"sku":"SERMIO-RGR#33","price":2900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20240524-111046.jpg?v=1716586656"},{"product_id":"13-5-diplomystus-dentatus-w-fish-in-belly-green-river-formation-wyoming","title":"13.5\" Diplomystus dentatus w\/ fish in belly | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus with fish in belly\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePreparation by Carl Ulrich\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 16\" x 9\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 13.5\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features a beautifully preserved Diplomystus dentatus with a smaller fish inside its stomach. This rare occurrence provides a glimpse into a dynamic ecological event that has been frozen in time for millions of years.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":45757183230174,"sku":"DIPFIB-RGR","price":1495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20240803-162944.jpg?v=1722724970"},{"product_id":"💥hot-deal💥science-class-knightia-mini-fish-100-natural-green-river-formation-5-ea-or-25-fish-for-4-ea","title":"💥HOT DEAL💥Science Class Knightia Mini Fish | 100% Natural | Green River Formation | $5\/ea or 25 Fish for $4\/ea","description":"\u003cp\u003eThese mini Knightia eocaena fossil fish are perfect for a classroom setting or even small gifts. Affordable and 100% natural, they make a great educational tool or a great addition to your collection. Receive \u003cstrong\u003eone \u003c\/strong\u003efossil hand selected just for you!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e*If you buy bundles of 25, the price goes down to $4 each. Just choose the Bundle Price variant below. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eKnightia eocaena, unrestored  specimen (has not been enhanced)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eEocene (51.98 Million Years Ago)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eGreen River Formation\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIn Stone Fossils Private Quarry\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWyoming, USA\u003c\/span\u003e\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eOrder Clupeiformes, Family Clupeidae\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe Clupeidae family has an estimated 50 modern freshwater species. Clupeidae species can lay as many as 200,000 eggs at once, allowing species to multiply quickly. Modern species are also prone to mass die offs.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe most common fish found from Fossil Lake.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe most commonly found articulated vertebrate fossil in the world.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eThe Wyoming state fossil.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBoth \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003eand \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. alta\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e are frequently discovered in mass mortality plates, some containing up to 100 fish per square meter. This suggests that, like their modern relatives, the \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eKnightia\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003especies were sensitive to environmental changes.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e specimens of all sizes are found in mass mortality plates, indicating this species schooled as both a juvenile and adult. The average adult size of \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eK. eocaena\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e specimens is about 6 inches, though specimens as large as 10 inches have been found.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e*Actual product may vary from picture but will still be a mini Knightia eocaena\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Single Fish","offer_id":46114791915742,"sku":"","price":5.0,"currency_code":"USD","in_stock":true},{"title":"25 Fish For $4 each","offer_id":46114787688670,"sku":"","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20241105-174306.jpg?v=1730918796"},{"product_id":"11-75-diplomystus-dentatus-w-fish-in-belly-green-river-formation-wyoming","title":"11.75\" Diplomystus dentatus w\/ fish in belly | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus with fish in belly\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePreparation by Carl Ulrich\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 22\" x 14\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 11.75\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis specimen features a beautifully preserved Diplomystus dentatus with a smaller fish inside its stomach. This rare occurrence provides a glimpse into a dynamic ecological event that has been frozen in time for millions of years.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":46163078414558,"sku":"DIPFIB2-RGR","price":1635.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/image000001-_3.jpg?v=1734547532"},{"product_id":"phareodus-testis-green-river-formation-wyoming-2","title":"Phareodus testis | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003ePhareodus testis\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSpecimen approx. size: 5.5\"\u003cbr\u003e\u003cbr\u003eMatrix approx. size: 9.75\" x 8.75\"\u003c\/p\u003e\n\u003cdiv data-offset-key=\"agi5r-0-0\" data-editor=\"69o43\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"agi5r-0-0\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIn the ancient waters of Fossil Lake, a formidable predator roamed. The Phareodus testis, a smaller but equally fascinating cousin of Phareodus encaustus. Both species boasted striking features, including pointy teeth and an impressive pectoral fin.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Bony-Tongue Fish Family\u003c\/p\u003e\n\u003cp\u003ePhareodus encaustus and Phareodus testis belong to the order Osteoglossiformes and family Osteoglossidae. Today, this family comprises 10 modern species that thrive in tropical freshwater habitats across South America, Africa, Asia, and Australia. Interestingly, these fish are mouth-brooders, where parents carefully nurture eggs and hatchlings in their mouths.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFossil Discoveries\u003c\/p\u003e\n\u003cp\u003eFossil records reveal that adult Phareodus specimens often went solo, whereas juveniles frequently gathered in large groups. This suggests that Phareodus fish schooled together during their youth before becoming solitary predators as adults. The presence of smaller fish in their jaws and stomachs confirms their predatory nature. Adaptations like rearward-oriented fins and large, sharp teeth enabled Phareodus to chase down prey with ease.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSize Comparison\u003c\/p\u003e\n\u003cp\u003eWhile Phareodus encaustus reached an impressive 30 inches in length, its smaller counterpart, Phareodus testis, measured around 20 inches. Despite their size difference, both species played vital roles in their ancient ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":46259085476062,"sku":"PHAR1-RGR*","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20250204-115658.jpg?v=1738697075"},{"product_id":"9-75-priscacara-serrata-fossil-fish-green-river-formation-natural-specimen","title":"9.75\" Priscacara serrata Fossil Fish | Green River Formation | Natural Specimen","description":"\u003cdiv style=\"text-align: center;\"\u003ePriscacara serrata 100% Natural\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago) \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 9.75\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 18\" x 14.5\" x 1\" thick\u003c\/p\u003e\n\u003cp\u003eStand not included.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cp\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species\u003c\/p\u003e\n\u003cp\u003eP. serrata is perhaps the most popular and sought after of the Green River Formation fish fossils. The Moronidae are a family of perciform fishes, commonly called the temperate basses. P. serrata is an uncommon find compared to Cockerellites liops, which are often confused without proper examination and preparation. P. serrata are typically larger than C. liops.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata is a deep-bodied, laterally compressed fish exhibiting a sunfish-like profile. It typically reaches lengths of 6 to 16 inches (15 to 40 cm), though smaller and larger specimens occur. Its distinguishing features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA prominent dorsal fin with both spiny and soft-rayed sections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNotably serrated preopercle and opercle bones, which give the species its name (“serrata” meaning “serrated”)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWell-developed pectoral and pelvic fins\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata fossils are often preserved in exceptional detail, with visible fin rays, scales, and skeletal structure. These specimens are a hallmark of the lagerstätte preservation found in the Green River Formation. Entire schools of Priscacara have been found fossilized together, suggesting schooling behavior and providing insights into Eocene freshwater ecosystems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis species thrived in the subtropical, stratified freshwater lakes of the Eocene, preying on smaller fish, crustaceans, and aquatic invertebrates. It shared its habitat with other iconic Green River fishes like Knightia, Diplomystus, and Mioplosus.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":47647871566046,"sku":"PRSKY73","price":2200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/DSC_0585a.jpg?v=1762809616"},{"product_id":"notogoneus-osculus-and-diplomystus-dentatus-100-natural-green-river-formation-wyoming","title":"Notogoneus osculus and Diplomystus dentatus | 100% Natural | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003eNotogoneus osculus and Diplomystus dentatus\u003cbr\u003eUnrestored specimen, 100% Natural\u003cbr\u003e\u003c\/span\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003eEocene (51.98 Million Years Ago)\u003cbr\u003e\u003c\/span\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003eGreen River Formation, Wyoming, USA\u003cbr\u003e\u003c\/span\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003eIn Stone Fossils Private Quarry\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003ePlate approx. size: 29.75\" x 41.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003eNotogoneus approx. size: 22.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-offset-key=\"f1ote-0-0\"\u003eDiplomystus approx. size: 16.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e**Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3\/4\" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"ars6n-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"9tkcn-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"9tkcn-0-0\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"f1ote-0-0\" data-editor=\"1h7jn\" data-block=\"true\" class=\"block paragraph\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp data-offset-key=\"1q9i7-0-0\" data-editor=\"1h7jn\" data-block=\"true\" class=\"block paragraph\"\u003e \u003c\/p\u003e\n\u003cdiv data-offset-key=\"2ghaf-0-0\" data-editor=\"1h7jn\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"2ghaf-0-0\"\u003e\u003cstrong\u003e\u003c\/strong\u003eBeaked Sandfish - Notogoneus osculus\u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"2ghaf-0-0\"\u003eOrder Gonorynchiformes, Family Gonorynchidae\u003c\/p\u003e\n\u003cp\u003eNotogoneus osculus\u003cstrong\u003e \u003c\/strong\u003ewas the final North American member of the Gonorynchidae family. There are 5 modern species within the family that inhabit tropical marine regions of the Indo-Pacific Oceans. Notogoneus did not have teeth; instead, it had a \"beak\" adapted for bottom feeding. This beaked mouth was well-suited for its bottom-feeding and scavenging lifestyle.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFossils of Notogoneus found in Fossil Lake show two distinct size distributions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFry (juveniles): \u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-processed=\"true\"\u003erange from 1\"-2\" in length.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdults: range from 10\"-35\" in length. The average size for an adult specimen is around 18\".\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecimens of intermediate size are notably rare in Fossil Lake. This is thought to indicate that Notogoneus was a migratory species. It might have hatched in Fossil Lake, migrated to connecting streams or rivers for development, then returned as adults to spawn and perish in deep-water zones. The large adult fossils are found almost exclusively in the 18-inch layer.\u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"2ghaf-0-0\"\u003e \u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"2ghaf-0-0\"\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils ","offers":[{"title":"Default Title","offer_id":47653082366174,"sku":"NOTODIP","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/NotoDip1.jpg?v=1762723691"},{"product_id":"9-25-diplomystus-dentatus-green-river-formation-wyoming","title":"9.25\" Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 12.75\" x 11.5\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 9.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":47661406519518,"sku":"DIPLO90","price":425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_162ed706-e15f-4b25-b059-bc868fc361af.jpg?v=1762467272"},{"product_id":"positive-negative-pair-of-a-partial-fossil-fish-aspiration-mioplosus-labracoides-wyoming","title":"Positive\/Negative Pair of a Partial Fossil Fish Aspiration | Mioplosus labracoides | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003eMioplosus labracoides\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago)\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSpecimen approx. size: 4\"\u003c\/p\u003e\n\u003cp\u003ePositive plate approx. size: 7.5\" x 6.5\"\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eNegative plate approx. size: 7\" x 9\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eKnown as an aspiration, this fossil captures a partial Mioplosus that died trying to swallow its prey whole. The prey fish was too large for the Mioplosus to swallow, and it literally choked to death on it. The tail of the prey fish can be seen sticking out of the Mioplosus' mouth.\u003c\/p\u003e\n\u003cdiv class=\"XbtRGb qxsd NV5pMe yF5Gqd mod\" data-md=\"50\" lang=\"en-US\" data-hveid=\"CAUQAA\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQkCkwDXoECAUQAA\"\u003e\n\u003cdiv class=\"PZPZlf hb8SAc\" data-attrid=\"description\" data-hveid=\"CAUQAQ\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQziAoADANegQIBRAB\"\u003e\n\u003cdiv class=\"kno-rdesc\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFamily Latidae - M. labracoides\u003c\/li\u003e\n\u003c\/ul\u003e\nM. labracoides specimens:\n\u003cul\u003e\n\u003cli\u003eare characterized by 2 dorsal fins and a moderately forked, fan-shaped tail fin\u003c\/li\u003e\n\u003cli\u003ehad a long, torpedo-shaped body with streamlined proportions for fast swimming\u003c\/li\u003e\n\u003cli\u003eknown to reach 20 inches\u003c\/li\u003e\n\u003cli\u003ejuveniles commonly found in mass mortalities and adults found alone, indicating M. labracoides traveled in schools as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003ejuvenile and adult specimens often found preserved with smaller fish in the jaw or stomach\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\nMioplosus labracoides was likely an apex or mesopredator in the Fossil Lake ecosystem, preying on smaller fish species such as Knightia and Diplomystus. Unlike more gregarious species, fossil occurrences of Mioplosus are typically isolated rather than in mass mortality layers, suggesting a more solitary lifestyle.\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils ","offers":[{"title":"Default Title","offer_id":47748594139358,"sku":"MIOASP-RH","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_5ec7d270-134c-40d1-858d-457b779e75c7.jpg?v=1766014329"},{"product_id":"phareodus-encaustus-with-unique-taphonomy-100-natural-specimen-green-river-formation","title":"Phareodus encaustus with unique taphonomy | 100% Natural Specimen | Green River Formation","description":"\u003cdiv data-offset-key=\"1v01n-0-0\" data-editor=\"69o43\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"1v01n-0-0\"\u003e\u003cspan data-offset-key=\"1v01n-0-0\"\u003ePhareodus encaustus 100% Natural \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"1v01n-0-0\"\u003e\u003cspan data-offset-key=\"1v01n-0-0\"\u003eEocene (51.98 Million Years Ago) \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"1v01n-0-0\"\u003e\u003cspan data-offset-key=\"1v01n-0-0\"\u003eGreen River Formation, Wyoming, USA \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"1v01n-0-0\"\u003e\u003cspan data-offset-key=\"1v01n-0-0\"\u003eIn Stone Fossils Private Quarry \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"1v01n-0-0\"\u003e\n\u003cspan data-offset-key=\"1v01n-0-0\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"1v01n-0-0\"\u003e\u003cspan data-offset-key=\"1v01n-0-0\"\u003ePlate size approx: 42.5\" x 29\" \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"dq0oe-0-0\" data-editor=\"69o43\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"dq0oe-0-0\"\u003e\u003cspan data-offset-key=\"dq0oe-0-0\"\u003ePhareodus size approx: 24\" \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"agi5r-0-0\" data-editor=\"69o43\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"agi5r-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"f3kpd-0-0\" data-editor=\"69o43\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003eThis fossil specimen acquired unique taphonomy as it was preserved. \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003eThe fossil wasn't altered or restored to make it look \"better\" or more complete. It's left in its original state, which gives us a more authentic look at the fossil's history.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003eA fine layer of surrounding rock (matrix) was carefully removed using microscopic techniques. This reveals the fossil's details without damaging it. The fossil's position and any surrounding features are preserved, providing valuable context for scientists studying it.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003eThis approach helps researchers understand the fossil's original environment, how it was buried, and other details about its history. It's like a snapshot of the past, preserved just as it was found. \u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003e\n\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\" style=\"text-align: left;\"\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"3ng0\" data-offset-key=\"7p8q7-0-0\"\u003e\n\u003cdiv data-offset-key=\"7p8q7-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e**Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3\/4\" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"ars6n-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"9tkcn-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"9tkcn-0-0\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003e\n\u003cspan data-offset-key=\"f3kpd-0-0\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f3kpd-0-0\"\u003e\n\u003ch3\u003eBony-Tongue Fish - 2 Species Identified:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus encaustus\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003e\u0026amp;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus testis\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cspan data-offset-key=\"f3kpd-0-0\"\u003e\u003cspan data-offset-key=\"f3kpd-0-0\"\u003eOrder Osteoglossiformes, Family Osteoglossidae\u003cbr\u003eLiving members of the Osteoglossidae family:\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003einclude 10 modern species\u003c\/li\u003e\n\u003cli\u003elive exclusively in tropical freshwaters\u003c\/li\u003e\n\u003cli\u003efound in South America, Africa, Asia, and Australia\u003c\/li\u003e\n\u003cli\u003emouth-brooders (parents hold eggs and hatchlings in their mouths)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan data-offset-key=\"f3kpd-0-0\"\u003e\u003cspan data-offset-key=\"f3kpd-0-0\"\u003ePhareodus fossils:\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eadult specimens usually found alone, but juveniles known from mass mortalities\u003c\/li\u003e\n\u003cli\u003eindicates that\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003eschooled as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003eoften preserved with smaller fish in their jaws and stomach, indicating they were predators\u003c\/li\u003e\n\u003cli\u003erearward oriented fins on back and underside, adaptation for speed\u003c\/li\u003e\n\u003cli\u003elarge, sharp teeth\u003c\/li\u003e\n\u003cli\u003emax known size of\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eP. encaustus\u003c\/em\u003e: 30 inches\u003c\/li\u003e\n\u003cli\u003emax known size of\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eP. testis\u003c\/em\u003e: 20 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":47872621445342,"sku":"Tucson2","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_8eb98bb5-901a-4c86-9cdd-4d433f5d2bc0.jpg?v=1769889178"},{"product_id":"5-knightia-eocaena-with-stick-100-natural-green-river-formation-wyoming","title":"5\" Knightia eocaena with stick | 100% Natural | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eKnightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This beautiful specimen is 100% natural, no restoration with great preservation. This specimen is backed with cabinet grade wood for hanging and includes a french cleat.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 24\u003c\/span\u003e\u003cspan\u003e\" x 20.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-offset-key=\"7p8q7-0-0\" data-editor=\"3ng0\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"7p8q7-0-0\"\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e**Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3\/4\" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"ars6n-0-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"9tkcn-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"9tkcn-0-0\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":47881384984798,"sku":"Tucson8","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_6920cbed-8f4a-4746-840f-3647593a2f08.jpg?v=1770246667"},{"product_id":"coccodus-insignis-fossil-fish-and-carpopenaeus-fossil-shrimp-lebanon","title":"Coccodus insignis (fossil fish) and Carpopenaeus (fossil shrimp) | Lebanon","description":"\u003cp style=\"text-align: center;\"\u003eCoccodus insignis and Carpopenaeus\u003cbr\u003eEarly Cretaceous (~100 MYO)\u003cbr\u003eHjoula, Byblos, Lebanon\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 4\" x 1.75\"\u003c\/p\u003e\n\u003cp\u003eShrimp approx. size: 1.5\" x 0.75\"\u003c\/p\u003e\n\u003cp\u003eMatrix approx. size: 5.75\" x 4.5\"\u003c\/p\u003e\n\u003cp\u003eThis plate has a few cracks that has been repaired, but the fossils have had little to no restoration.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis striking fossil pairing brings together two very different creatures that once thrived in ancient seas. Coccodus insignis, an extinct relative of modern-day triggerfish, appears alongside Carpopenaeus, a prehistoric shrimp—offering a fascinating glimpse into a long-lost marine ecosystem.\u003c\/p\u003e\n\u003cp\u003eCoccodus belongs to an extinct genus of marine pycnodontid fish that lived during the Late Cretaceous. It is especially recognizable for its unusual head armor, featuring a pair of large, curved spines projecting from the lower sides of the head and a single curved spine extending from the top. While most pycnodontids were short-bodied and resembled modern butterflyfish, Coccodus had a more elongated form, giving it a superficial resemblance to a scaled chimaera.\u003c\/p\u003e\n\u003cp\u003eLike other pycnodontids, Coccodus was equipped with strong, rounded teeth designed for crushing hard-shelled prey such as mollusks and crustaceans—making creatures like Carpopenaeus a potential part of its diet.\u003c\/p\u003e","brand":"In Stone Fossils ","offers":[{"title":"Default Title","offer_id":47914889576670,"sku":"LBNFSHRMP","price":340.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_2cebdb57-a53f-499c-a158-dcd59f301ed8.jpg?v=1792786636"},{"product_id":"fossil-block-experience-kit-green-river-formation-fossil-butte-member","title":"Fossil Block Experience Kit | Green River Formation | Fossil Butte Member","description":"\u003cp\u003e\u003cstrong\u003eFossil Block Experience Kit — Green River Formation | Fossil Butte Member\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUncover millions of years of prehistoric history right in your own hands. Each kit includes an 8–9 lb. block of authentic Fossil Butte Member rock sourced from the renowned mini fish stratification layer — one of the richest fossil-bearing zones in the Green River Formation.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside Your Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEvery Fossil Block Experience Kit includes everything you need to get started:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8–9 lb. block of genuine fossil-bearing rock\u003c\/li\u003e\n\u003cli\u003eSturdy display stand for safe splitting\u003c\/li\u003e\n\u003cli\u003e8-inch splitting shim\u003c\/li\u003e\n\u003cli\u003eFossil identification booklet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat You Might Find\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis material comes from a layer with the highest concentration of fish fossils, making every split an exciting discovery. While no find is ever guaranteed, most blocks yield at least one fossil — commonly fish remains, scales, and insects, with the occasional leaf or other rare specimens.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSplit your block down gradually — the thinner the split, the better your chances of uncovering something remarkable. Here's where it gets exciting: if you reveal a great find mid-block, you can choose to keep it as-is or keep splitting to see what else may be hiding inside. The choice is yours.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery block is unique. Every split is a surprise.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant More?\u003c\/strong\u003e \u003cspan style=\"text-decoration: underline;\"\u003eAdd up to 2 additional fossil blocks\u003c\/span\u003e to your order for just \u003cstrong\u003e$40 each\u003c\/strong\u003e — a reduced rate for the true fossil enthusiast.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*Discount only applies for up to 2 additional fossil blocks per order; any quantities beyond that are charged full price. If you would like more fossil blocks, please contact us for a custom shipping quote and to complete your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e**Please contact us if you would like to purchase more than one of the entire Fossil Block Experience Kit, not just additional fossil blocks.\u003c\/em\u003e\u003c\/p\u003e","brand":"In Stone Fossils ","offers":[{"title":"Default Title","offer_id":48046529052894,"sku":"MINIBLOCKS","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_4d3f5806-c8f6-4890-9e89-dfc46a37927f.jpg?v=1774892625"},{"product_id":"five-diplomystus-and-a-phareodus-100-natural-green-river-formation-wyoming","title":"Five Diplomystus and a Phareodus | 100% Natural | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus \u0026amp; Phareodus testis\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eUnrestored specimen, 100% Natural\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 46.75\" x 42.75\" x 2\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. sizes: 7.25\", 8\", 16.5\", 18\", \u0026amp; 18\"\u003c\/p\u003e\n\u003cp\u003ePhareodus approx. size: 5.25\"\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"3ng0\" data-offset-key=\"7p8q7-0-0\"\u003e\n\u003cdiv data-offset-key=\"7p8q7-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7plvv\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e**Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3\/4\" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7plvv\" data-offset-key=\"ars6n-0-0\"\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"7plvv\" data-offset-key=\"9tkcn-0-0\"\u003e\n\u003cdiv data-offset-key=\"9tkcn-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eBony-Tongue Fish - 2 Species Identified:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus encaustus\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003e\u0026amp;\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus testis\u003c\/em\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cspan data-offset-key=\"f3kpd-0-0\"\u003eOrder Osteoglossiformes, Family Osteoglossidae\u003cbr\u003eLiving members of the Osteoglossidae family:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einclude 10 modern species\u003c\/li\u003e\n\u003cli\u003elive exclusively in tropical freshwaters\u003c\/li\u003e\n\u003cli\u003efound in South America, Africa, Asia, and Australia\u003c\/li\u003e\n\u003cli\u003emouth-brooders (parents hold eggs and hatchlings in their mouths)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-offset-key=\"f3kpd-0-0\"\u003ePhareodus fossils:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eadult specimens usually found alone, but juveniles known from mass mortalities\u003c\/li\u003e\n\u003cli\u003eindicates that\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePhareodus\u003cspan\u003e \u003c\/span\u003e\u003c\/em\u003eschooled as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003eoften preserved with smaller fish in their jaws and stomach, indicating they were predators\u003c\/li\u003e\n\u003cli\u003erearward oriented fins on back and underside, adaptation for speed\u003c\/li\u003e\n\u003cli\u003elarge, sharp teeth\u003c\/li\u003e\n\u003cli\u003emax known size of\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eP. encaustus\u003c\/em\u003e: 30 inches\u003c\/li\u003e\n\u003cli\u003emax known size of\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eP. testis\u003c\/em\u003e: 20 inches\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"In Stone Fossils ","offers":[{"title":"Default Title","offer_id":48052976484574,"sku":"HALL-KIP","price":25000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_1c33046f-8445-40c8-885e-45d09dd5d52a.jpg?v=1775257444"},{"product_id":"large-knightia-mini-fish-mortality-plate-100-natural-green-river-formation","title":"Large Knightia Mini Fish Mortality Plate | 100% Natural | Green River Formation","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eKnightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This beautiful specimen is 100% natural, no restoration with great preservation.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. number: 40\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 33\" x 30\" x 1.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 1.25\" - 2.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv data-offset-key=\"d04j5-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"d04j5-0-0\"\u003e\n\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e**Due to the size of this specimen, it will be shipped in an internationally compliant wooden crate. The plate itself is backed with 3\/4\" plywood for durability and easy wall hanging, a french cleat hanging system is included as well.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"ars6n-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"ars6n-0-0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"9tkcn-0-0\" data-editor=\"7plvv\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"9tkcn-0-0\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShipping costs will be calculated and billed after purchase. Please contact us if you need a specific shipping rate prior to purchase. You may opt in for in-store pickup to cut your shipping costs all together and pick up your specimen in person. You can pick up from our store location in Kemmerer, Wyoming, or we deliver to both the Denver Gem \u0026amp; Mineral show in the Fall and the Tucson Gem \u0026amp; Mineral show in the winter. For any questions, please don't hesitate to contact us directly.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":48480942260446,"sku":"NITIAMRT1","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_2271365b-ae42-4990-ad92-cdb88fec28d0.jpg?v=1784940079"},{"product_id":"4-25-cockerellites-liops-formerly-priscacara-liops-100-natural-green-river-formation-wyoming-2","title":"4.25\" Cockerellites liops (formerly Priscacara liops) | 100% Natural | Green River Formation | Wyoming","description":"\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"6t72d-0-0\"\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"4r6j6-0-0\"\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eCockerellites liops, 100% Natural\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eEocene (51.98 Million Years Ago) \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eGreen River Formation, Wyoming, USA \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eIn Stone Fossils Private Quarry \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"f41ec-0-0\"\u003e\n\u003cdiv data-offset-key=\"f41ec-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cdiv data-offset-key=\"f41ec-0-0\" data-editor=\"98i1r\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e \u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\u003cspan data-offset-key=\"f41ec-0-0\"\u003ePlate approx. size: 8.75\" x 8.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\u003cspan data-offset-key=\"emeso-0-0\"\u003eFish approx. size: 4.25\"\u003c\/span\u003e\u003cspan data-offset-key=\"emeso-0-0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"52m64-0-0\"\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cspan data-offset-key=\"52m64-0-0\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cspan data-offset-key=\"52m64-0-0\"\u003e \u003c\/span\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\n\u003cp data-offset-key=\"emeso-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003eOrder Perciformes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" data-editor=\"98i1r\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp\u003eFamily Moronidae\u003c\/p\u003e\n\u003cp\u003eA diverse assemblage of fossil fish species, including C. liops, P. serrata, H. hypsacantha, and undescribed species of Priscacara and Hypsiprisca, have been discovered in the fossil record.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eC. liops Specimens\u003c\/p\u003e\n\u003cp\u003eFossil evidence suggests that C. liops exhibited a gregarious behavior, with specimens found both as isolated individuals and in mass mortality assemblages. This indicates that C. liops likely traveled in schools throughout its life cycle.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMorphological Characteristics\u003c\/p\u003e\n\u003cp\u003e- Maximum size: 6 inches\u003c\/p\u003e\n\u003cp\u003e- Body shape: Similar to that of modern members of the family Centrarchidae (sunfish family), suggesting a possible convergent evolutionary relationship.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePaleoecological Implications\u003c\/p\u003e\n\u003cp\u003eThe presence of C. liops and other fossil fish species in the Moronidae family provides valuable insights into the paleoecology of ancient aquatic ecosystems. The discovery of mass mortality assemblages and the inferred schooling behavior of C. liops offer a glimpse into the complex interactions and dynamics of ancient fish populations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49173529100510,"sku":"PRSKY79","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-121108.jpg?v=1791484821"},{"product_id":"5-25-cockerellites-liops-formerly-priscacara-liops-100-natural-green-river-formation-wyoming-6","title":"5.25\" Cockerellites liops (formerly Priscacara liops) | 100% Natural | Green River Formation | Wyoming","description":"\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"6t72d-0-0\"\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"4r6j6-0-0\"\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eCockerellites liops, 100% Natural\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eEocene (51.98 Million Years Ago) \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eGreen River Formation, Wyoming, USA \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" style=\"text-align: center;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eIn Stone Fossils Private Quarry \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"4r6j6-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"f41ec-0-0\"\u003e\n\u003cdiv data-offset-key=\"f41ec-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cdiv data-offset-key=\"f41ec-0-0\" data-editor=\"98i1r\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e \u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\u003cspan data-offset-key=\"f41ec-0-0\"\u003ePlate approx. size: 6.25\" x 6\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\u003cspan data-offset-key=\"emeso-0-0\"\u003eFish approx. size: 5.25\"\u003c\/span\u003e\u003cspan data-offset-key=\"emeso-0-0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"52m64-0-0\"\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\u003cspan data-offset-key=\"52m64-0-0\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cspan data-offset-key=\"52m64-0-0\"\u003e \u003c\/span\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\n\u003cp data-offset-key=\"emeso-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003eOrder Perciformes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" data-editor=\"98i1r\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp\u003eFamily Moronidae\u003c\/p\u003e\n\u003cp\u003eA diverse assemblage of fossil fish species, including C. liops, P. serrata, H. hypsacantha, and undescribed species of Priscacara and Hypsiprisca, have been discovered in the fossil record.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eC. liops Specimens\u003c\/p\u003e\n\u003cp\u003eFossil evidence suggests that C. liops exhibited a gregarious behavior, with specimens found both as isolated individuals and in mass mortality assemblages. This indicates that C. liops likely traveled in schools throughout its life cycle.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMorphological Characteristics\u003c\/p\u003e\n\u003cp\u003e- Maximum size: 6 inches\u003c\/p\u003e\n\u003cp\u003e- Body shape: Similar to that of modern members of the family Centrarchidae (sunfish family), suggesting a possible convergent evolutionary relationship.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePaleoecological Implications\u003c\/p\u003e\n\u003cp\u003eThe presence of C. liops and other fossil fish species in the Moronidae family provides valuable insights into the paleoecology of ancient aquatic ecosystems. The discovery of mass mortality assemblages and the inferred schooling behavior of C. liops offer a glimpse into the complex interactions and dynamics of ancient fish populations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49173561475294,"sku":"PRSKY80","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-125901_241ad995-57da-4d47-abdb-595eb5d38f41.jpg?v=1791486061"},{"product_id":"5-5-priscacara-serrata-fossil-fish-green-river-formation-natural-specimen-2","title":"5.5\" Priscacara serrata Fossil Fish | Green River Formation | Natural Specimen","description":"\u003cdiv style=\"text-align: center;\"\u003ePriscacara serrata 100% Natural\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago) \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 5.5\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 7.25\" x 6\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cp\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species\u003c\/p\u003e\n\u003cp\u003eP. serrata is perhaps the most popular and sought after of the Green River Formation fish fossils. The Moronidae are a family of perciform fishes, commonly called the temperate basses. P. serrata is an uncommon find compared to Cockerellites liops, which are often confused without proper examination and preparation. P. serrata are typically larger than C. liops.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata is a deep-bodied, laterally compressed fish exhibiting a sunfish-like profile. It typically reaches lengths of 6 to 16 inches (15 to 40 cm), though smaller and larger specimens occur. Its distinguishing features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA prominent dorsal fin with both spiny and soft-rayed sections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNotably serrated preopercle and opercle bones, which give the species its name (“serrata” meaning “serrated”)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWell-developed pectoral and pelvic fins\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata fossils are often preserved in exceptional detail, with visible fin rays, scales, and skeletal structure. These specimens are a hallmark of the lagerstätte preservation found in the Green River Formation. Entire schools of Priscacara have been found fossilized together, suggesting schooling behavior and providing insights into Eocene freshwater ecosystems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis species thrived in the subtropical, stratified freshwater lakes of the Eocene, preying on smaller fish, crustaceans, and aquatic invertebrates. It shared its habitat with other iconic Green River fishes like Knightia, Diplomystus, and Mioplosus.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49173597323486,"sku":"PRSKY81","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-131617.jpg?v=1791487663"},{"product_id":"6-25-priscacara-serrata-fossil-fish-green-river-formation-natural-specimen-1","title":"6.25\" Priscacara serrata Fossil Fish | Green River Formation | Natural Specimen","description":"\u003cdiv style=\"text-align: center;\"\u003ePriscacara serrata 100% Natural\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago) \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 6.25\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 8.75\" x 8.75\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cp\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species\u003c\/p\u003e\n\u003cp\u003eP. serrata is perhaps the most popular and sought after of the Green River Formation fish fossils. The Moronidae are a family of perciform fishes, commonly called the temperate basses. P. serrata is an uncommon find compared to Cockerellites liops, which are often confused without proper examination and preparation. P. serrata are typically larger than C. liops.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata is a deep-bodied, laterally compressed fish exhibiting a sunfish-like profile. It typically reaches lengths of 6 to 16 inches (15 to 40 cm), though smaller and larger specimens occur. Its distinguishing features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA prominent dorsal fin with both spiny and soft-rayed sections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNotably serrated preopercle and opercle bones, which give the species its name (“serrata” meaning “serrated”)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWell-developed pectoral and pelvic fins\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePriscacara serrata fossils are often preserved in exceptional detail, with visible fin rays, scales, and skeletal structure. These specimens are a hallmark of the lagerstätte preservation found in the Green River Formation. Entire schools of Priscacara have been found fossilized together, suggesting schooling behavior and providing insights into Eocene freshwater ecosystems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis species thrived in the subtropical, stratified freshwater lakes of the Eocene, preying on smaller fish, crustaceans, and aquatic invertebrates. It shared its habitat with other iconic Green River fishes like Knightia, Diplomystus, and Mioplosus.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49173597487326,"sku":"PRSKY82","price":525.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-140825.jpg?v=1791490190"},{"product_id":"juvenile-diplomystus-dentatus-with-tail-predation-and-regrowth-green-river-formation-wyoming","title":"Juvenile Diplomystus dentatus with tail predation and regrowth | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 4\" x 4\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 2.25\" \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49173718401246,"sku":"DIPLO97","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-141908.jpg?v=1791491378"},{"product_id":"juvenile-diplomystus-dentatus-green-river-formation-wyoming","title":"Juvenile Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 4\" x 5.75\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 2.25\" \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49174207365342,"sku":"DIPLO99","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-173844.jpg?v=1791502825"},{"product_id":"2-75-diplomystus-dentatus-and-2-5-knightia-eocaena-100-natural-green-river-formation-wyoming","title":"2.75\" Diplomystus dentatus and 2.5\" Knightia eocaena | 100% Natural | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: center;\"\u003eDiplomystus dentatus and Knightia eocaena\u003cbr\u003eEocene (51.98 Million Years Ago) \u003cbr\u003eGreen River Formation, Wyoming, USA \u003cbr\u003eIn Stone Fossils Private Quarry\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003ePlate approx. size: 9.5\" x 5.25\"\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eDiplomystus approx. size: 2.75\"\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eKnightia approx. size: 2.5\"\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cdiv class=\"Polaris-Popover__ContentContainer\"\u003e\n\u003cdiv class=\"Polaris-Popover__Content Polaris-Popover__Content--fluidContent\" id=\":r6rv:\"\u003e\n\u003cdiv data-polaris-scrollable=\"true\" class=\"Polaris-Popover__Pane Polaris-Scrollable Polaris-Scrollable--vertical Polaris-Scrollable--horizontal Polaris-Scrollable--scrollbarWidthThin\"\u003e\n\u003cdiv class=\"_PopoverContainer_1o103_1\"\u003e\n\u003cdiv data-polaris-scrollable=\"true\" class=\"Polaris-Popover__Pane Polaris-Scrollable Polaris-Scrollable--vertical Polaris-Scrollable--horizontal Polaris-Scrollable--scrollbarWidthThin\"\u003e\n\u003cdiv class=\"_Container_1kcqz_1\"\u003e\n\u003cdiv class=\"_Vertical_1kcqz_9\"\u003e\n\u003cdiv class=\"_VerticalLayout_tmqkl_40\"\u003e\n\u003cdiv class=\"_OutputSection_tmqkl_1\"\u003e\n\u003cdiv class=\"_ContentWrapper_tmqkl_19\"\u003e\n\u003cdiv data-polaris-scrollable=\"true\" class=\"_Content_tmqkl_19 _VerticalContent_tmqkl_45 Polaris-Scrollable Polaris-Scrollable--vertical Polaris-Scrollable--horizontal Polaris-Scrollable--scrollbarWidthThin\"\u003e\n\u003cdiv class=\"Polaris-Box\"\u003e\n\u003cdiv class=\"Polaris-InlineStack\"\u003e\n\u003cp class=\"_TextOutput_nect0_1\"\u003eThis is a completely natural, unrestored fossil specimen featuring both fish positioned dorsally correct as originally preserved.\u003c\/p\u003e\n\u003cp class=\"_TextOutput_nect0_1\"\u003e \u003c\/p\u003e\n\u003cp class=\"_TextOutput_nect0_1\"\u003e\u003cstrong\u003e\u003c\/strong\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49174280306910,"sku":"DIPKN-07","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-175725_81333f0f-493b-4049-865b-5e8348919159.jpg?v=1791504368"},{"product_id":"100-natural-cockerellites-liops-knightia-eocaena-and-diplomystus-dentatus-green-river-formation-wyoming","title":"100% Natural Cockerellites liops, Knightia eocaena, and Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cp\u003e\u003cspan\u003eBeautiful multiple fish plate with three different specimens all occurring naturally on the same plate. Found in our private quarry in the prestigious 18\" layer. This beautiful specimen is 100% natural, no restoration with great preservation.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe take great pride in the preparation of our fossils. We use the best microscopes and preparation tools available. This specimen is 100% natural with zero restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate dimensions: approx. 15\"×11\"×.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCockerelliteis is approx. 4.5\" long\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDiplomystus is approx. 5\" long\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is approx. 4\" long\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"f41ec-0-0\"\u003e\n\u003cp data-offset-key=\"emeso-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003eOrder Perciformes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" data-editor=\"98i1r\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp\u003eFamily Moronidae\u003c\/p\u003e\n\u003cp\u003eA diverse assemblage of fossil fish species, including C. liops, P. serrata, H. hypsacantha, and undescribed species of Priscacara and Hypsiprisca, have been discovered in the fossil record.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eC. liops Specimens\u003c\/p\u003e\n\u003cp\u003eFossil evidence suggests that C. liops exhibited a gregarious behavior, with specimens found both as isolated individuals and in mass mortality assemblages. This indicates that C. liops likely traveled in schools throughout its life cycle.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMorphological Characteristics\u003c\/p\u003e\n\u003cp\u003e- Maximum size: 6 inches\u003c\/p\u003e\n\u003cp\u003e- Body shape: Similar to that of modern members of the family Centrarchidae (sunfish family), suggesting a possible convergent evolutionary relationship.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePaleoecological Implications\u003c\/p\u003e\n\u003cp\u003eThe presence of C. liops and other fossil fish species in the Moronidae family provides valuable insights into the paleoecology of ancient aquatic ecosystems. The discovery of mass mortality assemblages and the inferred schooling behavior of C. liops offer a glimpse into the complex interactions and dynamics of ancient fish populations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia spp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49174315499742,"sku":"KNCKDIP04","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-181204.jpg?v=1791506233"},{"product_id":"juvenile-diplomystus-dentatus-green-river-formation-wyoming-3","title":"Juvenile Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 5.75\" x 3.75\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 2.25\" \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49174331228382,"sku":"DIPLO101","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-184829.jpg?v=1791507139"},{"product_id":"juvenile-diplomystus-dentatus-green-river-formation-wyoming-4","title":"Juvenile Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 6\" x 4\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 3.5\" \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49174331457758,"sku":"DIPLO102","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-185731.jpg?v=1791507595"},{"product_id":"juvenile-diplomystus-dentatus-green-river-formation-wyoming-5","title":"Juvenile Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eDiplomystus dentatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eGreen River Formation, Wyoming, USA\u003cbr\u003eIn Stone Fossils Private Quarry\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 6\" x 4\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 3\" \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49174331556062,"sku":"DIPLO103","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/20261008-190322.jpg?v=1791507885"},{"product_id":"1-75-2-25-double-knightia-eocaena-100-natural-green-river-formation","title":"1.75\" \u0026 2.25\" Double Knightia eocaena | 100% Natural | Green River Formation","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eKnightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This beautiful specimen is 100% natural, no restoration with great preservation.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 5\" x 4.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 1.75\" \u0026amp; 2.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49180297330910,"sku":"NITIA57","price":19.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_73cf4c49-288e-45db-8ff8-6103ae9d7847.jpg?v=1791584111"},{"product_id":"knightia-eocaena-mini-fish-mortality-plate-green-river-formation-natural-specimen-2","title":"Knightia eocaena \"Mini Fish\" Mortality Plate | Green River Formation | Natural Specimen","description":"\u003cp\u003e\u003cspan\u003eMultiple Knightia fossils naturally found together in this way with beautiful reddish-gold toned iron mineral replacement of which our private quarry is prized for. Beautifully preserved fossil fish with ZERO restoration from the mini fish mortality layers of the Green River Formation, Wyoming. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo. of Knightia: 4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 5.25\" x 4.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 1.75\" - 2.5\"\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia spp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49180307783902,"sku":"KNGMORT19","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_7120d1ea-2246-4335-8c53-1bfa9916c592.jpg?v=1791584134"},{"product_id":"2-double-knightia-eocaena-100-natural-green-river-formation-2","title":"2\" Double Knightia eocaena | 100% Natural | Green River Formation","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eKnightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This beautiful specimen is 100% natural, no restoration with great preservation.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 4.25\" x 4.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 2\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49180314960094,"sku":"NITIA58","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_6e3b70ba-b876-40fc-ab1c-cfc8a360afa6.jpg?v=1791584158"},{"product_id":"knightia-eocaena-mini-fish-mortality-plate-green-river-formation-natural-specimen-3","title":"Knightia eocaena \"Mini Fish\" Mortality Plate | Green River Formation | Natural Specimen","description":"\u003cp\u003e\u003cspan\u003eMultiple Knightia fossils naturally found together in this way with beautiful reddish-gold toned iron mineral replacement of which our private quarry is prized for. Beautifully preserved fossil fish with ZERO restoration from the mini fish mortality layers of the Green River Formation, Wyoming. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo. of Knightia: 5\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 5.25\" x 4.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 1.75\" - 2.25\"\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia spp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49180776235230,"sku":"KNGMORT20","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_e90350c6-eb62-4152-9f8a-d4acdda0cbad.jpg?v=1791584215"},{"product_id":"knightia-eocaena-mini-fish-mortality-plate-green-river-formation-natural-specimen-5","title":"Knightia eocaena \"Mini Fish\" Mortality Plate | Green River Formation | Natural Specimen","description":"\u003cp\u003e\u003cspan\u003eMultiple Knightia fossils naturally found together in this way with beautiful reddish-gold toned iron mineral replacement of which our private quarry is prized for. Beautifully preserved fossil fish with ZERO restoration from the mini fish mortality layers of the Green River Formation, Wyoming. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo. of Knightia: 6\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 6\" x 6\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 1.75\" - 2.25\"\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia spp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49180777316574,"sku":"KNGMORT22","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_263f3eb4-bc28-4f87-ac81-4c6ce5c5c97d.jpg?v=1791584308"},{"product_id":"rare-hypsiprisca-fossil-fish-green-river-formation-wyoming-2","title":"Rare Hypsiprisca Fossil Fish | Green River Formation |  Wyoming","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eHypsiprisca sp.\u003cbr\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eEocene (51.98 Million Years Ago)\u003cbr\u003e\u003c\/span\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003cbr\u003e\u003c\/span\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003ePreparation by Jim Tynsky\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eFish approx. size: 1.75\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan data-offset-key=\"4r6j6-0-0\"\u003eMatrix approx. size: 3.75\" x 3.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cdiv data-offset-key=\"f41ec-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cdiv data-offset-key=\"emeso-0-0\" data-editor=\"98i1r\" data-block=\"true\" class=\"block paragraph\"\u003e\n\u003cp class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"emeso-0-0\"\u003eHypsiprisca remains one of the lesser-known fish from the Green River Formation. Its rarity and distinctive anatomy make it especially desirable to collectors and researchers alike.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block paragraph\" data-block=\"true\" data-editor=\"98i1r\" data-offset-key=\"52m64-0-0\"\u003e\n\u003cdiv data-offset-key=\"52m64-0-0\" class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003cbr\u003e\u003cbr\u003eFamily Moronidae - C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara \u0026amp; Hypsiprisca species.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHypsiprisca is a rare genus of small ray-finned fish know from the Green River Formation. It reached a maximum known length of 3.5 inches. Most known specimens have been recovered from nearshore deposits within the Green River Formation, making well-preserved examples relatively scarce.\u003c\/p\u003e\n\u003cp\u003eCompared to other moronids, Hypsiprisca has a more elongated body, a proportionally larger mouth, a less steep head profile, and a tail that is only slightly forked or nearly rounded. It also possesses a unique combination of anotomical features, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNine dorsal fin spines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA continuous dorsal fin with no separation between the spiny and soft-rayed portions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLong anterior-pointing spines along the lower margin of the preopercle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRounded margins on the second dorsal and anal fins\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA streamlined body adapted for active swimming\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49200199958750,"sku":"HYPRSC2","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_e85f0587-9e44-4f4a-8862-2b2bcea60f09.jpg?v=1791848145"},{"product_id":"2-75-mioplosus-labracoides-100-natural-green-river-formation","title":"2.75\" Mioplosus labracoides | 100% Natural | Green River Formation","description":"\u003cdiv style=\"text-align: center;\"\u003eMioplosus labracoides\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago)\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 2.75\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 5.75\" x 3.75\" x 0.625\"\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"XbtRGb qxsd NV5pMe yF5Gqd mod\" data-md=\"50\" lang=\"en-US\" data-hveid=\"CAUQAA\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQkCkwDXoECAUQAA\"\u003e\n\u003cdiv class=\"PZPZlf hb8SAc\" data-attrid=\"description\" data-hveid=\"CAUQAQ\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQziAoADANegQIBRAB\"\u003e\n\u003cdiv class=\"kno-rdesc\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFamily Latidae - M. labracoides\u003c\/li\u003e\n\u003c\/ul\u003e\nM. labracoides specimens:\n\u003cul\u003e\n\u003cli\u003eare characterized by 2 dorsal fins and a moderately forked, fan-shaped tail fin\u003c\/li\u003e\n\u003cli\u003ehad a long, torpedo-shaped body with streamlined proportions for fast swimming\u003c\/li\u003e\n\u003cli\u003eknown to reach 20 inches\u003c\/li\u003e\n\u003cli\u003ejuveniles commonly found in mass mortalities and adults found alone, indicating M. labracoides traveled in schools as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003ejuvenile and adult specimens often found preserved with smaller fish in the jaw or stomach\u003c\/li\u003e\n\u003c\/ul\u003e\nMioplosus labracoides was likely an apex or mesopredator in the Fossil Lake ecosystem, preying on smaller fish species such as Knightia and Diplomystus. Unlike more gregarious species, fossil occurrences of Mioplosus are typically isolated rather than in mass mortality layers, suggesting a more solitary lifestyle.\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49214912266462,"sku":"MIO21","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_fff595d6-6f9b-4657-9a2a-f693c7cdf390.jpg?v=1792096610"},{"product_id":"3-5-mioplosus-labracoides-100-natural-green-river-formation","title":"3.5\" Mioplosus labracoides | 100% Natural | Green River Formation","description":"\u003cdiv style=\"text-align: center;\"\u003eMioplosus labracoides\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago)\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFish approx. size: 3.5\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 5.75\" x 3.625\" x 0.25\"\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"XbtRGb qxsd NV5pMe yF5Gqd mod\" data-md=\"50\" lang=\"en-US\" data-hveid=\"CAUQAA\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQkCkwDXoECAUQAA\"\u003e\n\u003cdiv class=\"PZPZlf hb8SAc\" data-attrid=\"description\" data-hveid=\"CAUQAQ\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQziAoADANegQIBRAB\"\u003e\n\u003cdiv class=\"kno-rdesc\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFamily Latidae - M. labracoides\u003c\/li\u003e\n\u003c\/ul\u003e\nM. labracoides specimens:\n\u003cul\u003e\n\u003cli\u003eare characterized by 2 dorsal fins and a moderately forked, fan-shaped tail fin\u003c\/li\u003e\n\u003cli\u003ehad a long, torpedo-shaped body with streamlined proportions for fast swimming\u003c\/li\u003e\n\u003cli\u003eknown to reach 20 inches\u003c\/li\u003e\n\u003cli\u003ejuveniles commonly found in mass mortalities and adults found alone, indicating M. labracoides traveled in schools as a juvenile and became solitary as an adult\u003c\/li\u003e\n\u003cli\u003ejuvenile and adult specimens often found preserved with smaller fish in the jaw or stomach\u003c\/li\u003e\n\u003c\/ul\u003e\nMioplosus labracoides was likely an apex or mesopredator in the Fossil Lake ecosystem, preying on smaller fish species such as Knightia and Diplomystus. Unlike more gregarious species, fossil occurrences of Mioplosus are typically isolated rather than in mass mortality layers, suggesting a more solitary lifestyle.\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49214913446110,"sku":"MIO22","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_633adef3-5119-4f73-a073-c4fbb5f8e5c3.jpg?v=1792096638"},{"product_id":"3-25-knightia-eocaena-100-natural-green-river-formation-wyoming-1","title":"3.25\" Knightia eocaena | 100% Natural | Green River Formation | Wyoming","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eKnightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This beautiful specimen is 100% natural, no restoration with great preservation.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate approx. size: 6\" x 4\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 3.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49214917804254,"sku":"NITIA59","price":49.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_c0bb6295-b0d7-4a38-bd51-e22b533e4d63.jpg?v=1792085859"},{"product_id":"4-5-mioplosus-labracoides-and-2-25-diplomystus-dentatus-green-river-formation-wyoming","title":"4.5\" Mioplosus labracoides and 2.25\" Diplomystus dentatus | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003eMioplosus labracoides and Diplomystus dentatus\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eEocene (51.98 Million Years Ago)\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eGreen River Formation, Wyoming, USA\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eIn Stone Fossils Private Quarry\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMioplosus approx. size: 4.5\"\u003c\/p\u003e\n\u003cp\u003eDiplomystus approx. size: 2.25\"\u003c\/p\u003e\n\u003cp\u003ePlate approx. size: 6.25\" x 5.25\" x 0.75\"\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"XbtRGb qxsd NV5pMe yF5Gqd mod\" data-md=\"50\" lang=\"en-US\" data-hveid=\"CAUQAA\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQkCkwDXoECAUQAA\"\u003e\n\u003cdiv class=\"PZPZlf hb8SAc\" data-attrid=\"description\" data-hveid=\"CAUQAQ\" data-ved=\"2ahUKEwjQ9b3YrdLrAhXHUs0KHeowC7wQziAoADANegQIBRAB\"\u003e\n\u003cdiv class=\"kno-rdesc\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOrder Perciformes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFamily Latidae - M. labracoides\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eM. labracoides specimens:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eare characterized by 2 dorsal fins and a moderately forked, fan-shaped tail fin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ehad a long, torpedo-shaped body with streamlined proportions for fast swimming\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eknown to reach 20 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ejuveniles commonly found in mass mortalities and adults found alone, indicating M. labracoides traveled in schools as a juvenile and became solitary as an adult\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ejuvenile and adult specimens often found preserved with smaller fish in the jaw or stomach\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMioplosus labracoides was likely an apex or mesopredator in the Fossil Lake ecosystem, preying on smaller fish species such as Knightia and Diplomystus. Unlike more gregarious species, fossil occurrences of Mioplosus are typically isolated rather than in mass mortality layers, suggesting a more solitary lifestyle.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDiplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRay-finned Fish - Diplomystus dentatus\u003c\/p\u003e\n\u003cp\u003eOrder Ellimmichthyiformes, Family Paraclupeidae\u003c\/p\u003e\n\u003cp\u003eThe last known species of the Ellimmichthyiformes order went extinct sometime in the middle Eocene. D. dentatus is a primitive relative of the modern day herring. The genus Diplomystus is also known from fossil deposits in China.\u003c\/p\u003e\n\u003cp\u003eD. dentatus is the 2nd most common fossil fish found from Fossil Lake. Specimens ranging from embryonic size (about 0.7 inches) to full-grown adults (about 26 inches) are common. Smaller-sized specimens are more commonly found in mid-lake than near-shore deposits. This suggests that D. dentatus spawned in open water.\u003c\/p\u003e\n\u003cp\u003eThis species' upturned mouth indicates it fed at the surface of Fossil Lake. D. dentatus specimens are commonly found with other fish stuck in their mouths, including other D. dentatus specimens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49215729664222,"sku":"MIODIP","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/rn-image_picker_lib_temp_96c52d56-2101-4cdd-9598-bed3e69e3ea1.jpg?v=1792096679"},{"product_id":"3-5-knightia-eocaena-100-natural-green-river-formation-wyoming-2","title":"3.5\" Knightia eocaena | 100% Natural | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eKnightia eocaena\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003ePlate approx. size: 5\" x 3.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 3.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49295696199902,"sku":"KNTIA1-RGR","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/1000033158.jpg?v=1793048112"},{"product_id":"4-25-knightia-eocaena-100-natural-green-river-formation-wyoming-5","title":"4.25\" Knightia eocaena | 100% Natural | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eKnightia eocaena\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003ePlate approx. size: 5\" x 3\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 4.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49295768649950,"sku":"KNTIA2-RGR","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/1000033163.jpg?v=1793048163"},{"product_id":"3-5-knightia-eocaena-100-natural-green-river-formation-wyoming-3","title":"3.5\" Knightia eocaena | 100% Natural | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eKnightia eocaena\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003ePlate approx. size: 6.5\" x 4\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 3.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49295794962654,"sku":"KNTIA3-RGR","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/1000033170.jpg?v=1793048189"},{"product_id":"4-5-knightia-eocaena-100-natural-green-river-formation-wyoming-10","title":"4.5\" Knightia eocaena | 100% Natural | Green River Formation | Wyoming","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eKnightia eocaena\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eEocene (51.98 Million Years Ago)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003ePrivate Quarry, Green River Formation, Wyoming, USA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003eObtained from the collection of Dr. William Rieger\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003ePlate approx. size: 6.5\" x 4.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFish approx. size: 4.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, \"an indefatigable student of the paleontology of the Rocky Mountains.\" It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKnightia belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both Knightia alta and Knightia eocaena were originally described as species of true herring in the genus Clupea.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs with modern-day clupeids, Knightia sp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAnatomy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Knightia fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth. Their size varied by species: Knightia eocaena was the longest, growing up to 25 cm (10 in), though most specimens are no larger than 15 cm. K. alta was shorter and relatively wider, with specimens averaging between 6 and 10 cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePredators\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA small schooling fish, Knightia made an abundant food source for larger Eocene predators. The Green River Formation has yielded many fossils of larger fish species preying on Knightia; specimens of Diplomystus, Lepisosteus, Amphiplaga, Mioplosus, Phareodus, Amia, and Astephus have all been found with Knightia in either their jaws or stomachs.\u003c\/span\u003e\u003c\/p\u003e","brand":"In Stone Fossils","offers":[{"title":"Default Title","offer_id":49295964471518,"sku":"KNTIA4-RGR","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/files\/1000033171.jpg?v=1793048267"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0466\/5117\/9163\/collections\/Gar1.png?v=1705003932","url":"https:\/\/instonefossils.com\/collections\/fossil-fish-1.oembed?page=4","provider":"In Stone Fossils ","version":"1.0","type":"link"}