//Knightia Fish Fossil

Knightia Fish Fossil


Knightia eocaena, the State Fossil of Wyoming, is the most commonly excavated fossil fish in the world.



The Knightia were schooling freshwater fish from the Eocene Era- approximately 50 million years ago. The now extinct Knightia were small and herring like, and they are often preserved still in their shoals. These mass mortality layers are often confined to a single plane, indicating a solitary event. Theories of what it may have been include poisoning due to blooms of algae and stratified water turnovers. These fish fossils come from the Green River Formation in Wyoming. The site is famous due to the significant extent of soft tissue preservation that is evident in the specimens recovered there.
Specimens will vary as no two are alike. Approximate dimensions: 3″ x 3″


Additional information

Weight .2 lbs
Dimensions 3 × 3 × .5 in

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