Diplomystus dentatus (Cope 1877)

Diplomystus dentatus (Cope 1877)
From the Eocene, Green River Formation, Fossil Butte member.
Collected from Kemmerer, Wyoming, USA.
A very good sized Fish in a Rectangle of buff coloured siltstone,this is a really nice specimen with all of the bones intact.
This is one of the more uncommon species from "Fossil lake"
The entire specimen including the matrix measures 157mm x 97mm.