DIPLOMYSTUS dentatus from the famous Kemmerer Fossil Beds.
Green River Formation
This fish is a 3 3/4 inch long DIPLOMYSTUS dentatus and is on cream colored matrix measuring 6 3/4 inches x 5 inches. Your fish will come with the fossil fish story card that describes how the fish was fossilized.
Specimen in the picture is the specimen you will receive. Great fish, and a few extra bones from another fish