DIPLOMYSTUS dentatus from the famous Kemmerer Fossil Beds.
Green River Formation
This fish is a 3 1/2 inch long DIPLOMYSTUS dentatus and is on cream colored matrix measuring 3 1/2 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 detail in this beautiful fish