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Mioplosus labracoides & Five Knightia eocaena
Mioplosus labracoides & Five Knightia eocaena
Mioplosus labracoides & Five Knightia eocaena
Mioplosus labracoides & Five Knightia eocaena
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Mioplosus labracoides & Five Knightia eocaena

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$450.00
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$450.00
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Mioplosus labracoides & Five Knightia eocaena with a little gastropod. This specimen has been enhanced to bring out its natural beauty.
 
Mioplosus was a perch-like fish that mainly fed on smaller fish, like Knightia eocaena. Uncommon to find multiple within a mass mortality layer, suggests Mioplosus was a lone hunter.

Knightia 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.

Knightia 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.

As with modern-day clupeids, Knightia spp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish.

A 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.

 Plate approx: 22.75" x 19"
Mioplosus approx: 6"
Knightia approx: 4.25"
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.
 
Please contact us for a specific shipping rate. We've created a standard shipping price for easy purchase within this website. If you choose to purchase with our standard shipping rate, we will still find a lower rate to ship to your area and refund to you any outside cost. We do not intend to profit from shipping rates. However, should shipping costs increase, you are responsible to pay the outstanding fee. 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 & Mineral show in the Fall and the Tucson Gem & Mineral show in the winter. For any questions, please don't hesitate to contact us directly.