Large 18x13" Fossil Fish Plate - Wyoming

This is a beautiful mass mortality plate of Knightia (and one Diplomystus) fossil fish from teh Creen River Formation of Wyoming. It was collected this summer at Warfield's quarry near Kemmerer. There are 10 Knightia eocaena, the largest of which is decent sized at 4.4" long and a single Diplomystus near the center of the plate. The entire piece is 18x13" and about 3/4" of an inch thick.