5.7" Predatory Phareodus Fossil Fish

Here is a nice example of one of the more uncommon fish from the Green River Formation, Phareodus testis. It's 5.7" long and located on a 6 inch square piece of matrix. If you look closely you can see how Phareodus has a mouthful of sharp pointy teeth making is a voracious lake predator. In fact the name Phareodus actually means "to have tooth" Spines from other fish such as Mioplosus and Priscacara have frequently been found preserved in it's stomach.