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  • Knightia Fossil Fish - Wyoming Click to Enlarge
  • Knightia Fossil Fish - Wyoming

Knightia Fossil Fish - Wyoming

Heres a 50 million year old fossil herring from the Green River Formation of Wyoming. The species is Knightia eocaena, and it was collected near Kemmerer, Wyoming.

Knightia is an extinct genus of schooling, ray-finned, spindle-shaped, bony fish that shares a family with herrings and sardines. They lived in the freshwater (lacustrine) environments of North America and were eaten by just about everything that was bigger. They ate insects and smaller fish, and used gill rakers to feast on plankton. Knightia eocena is the largest of three species of Knightia, with a typical length of about 15 centimeters. It is the state fossil of Wyoming.
4 x 3 x .25 inches, 66.3 grams

$ 35.00

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