12" Mioplosus Fossil Fish - Uncommon Species

This is a nicely preserved example of the uncommon fossil fish from the Green River Formation, Mioplosus labracoides. It's 12" long on a thick, rectangular slab of shale which displays well on the included display stand. It's nicely detailed and sits pretty deeply in the rock. When it was found, the outline of the fish was seen on the backside of the rock, so preparation was initially started from the back. But the decision was made that it would display better if prepared from the other side. There is also a partial Knightia present on the plate.

Mioplosus is a genus of large, extinct, perciform fish that lived through the Eocene epoch. This genus is easily distuigished by their elongate fusiform body, double dorsal fins, and forked tail. Mioplosus was a solitary predator with large teeth and a few fossil specimens have been collected with other, smaller fish lodged in their throats. Most fossils of this genus are from the Tertiary era, Green River Formation in Wyoming, though relatives of this genus are known to range throughout Asia and New Zealand. Mioplosus is also believed to be related to the modern, pike-perch of the genus Sander (Stizostedion).
Mioplosus labracoides
Warfield's Quarry, Kemmerer, Wyoming
Green River Formation
12" long on 16x9.7 matrix
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