Wyoming Fish

This Specimen of Fish is known as "Knightia," which is extinct genus of the clupeid bony fish that resided in the Freshwater lakes and rivers of North America and Asia during the Eocene Era. Knightia belongs to the same taxonomic family as Sardines and Herring and resembled it closely enough that "Knightia eocaena" was originally described as a species of a true herring in the genus. The Knightia is the official state fossil of Wyoming and the most commonly excavated fossil fish in the world. The Green River Formation of Wyoming has an abundant of well preserved fossil fish in the world. Wyoming has produced this amazing Eocene aged (45-50 MYA) Fish Fossil.