{"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","url":"https:\/\/instonefossils.com\/products\/5-5-priscacara-serrata-fossil-fish-green-river-formation-natural-specimen-2","provider":"In Stone Fossils ","version":"1.0","type":"link"}