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Fish Fossil $75
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This is a beautiful Knightia eocaena fossil fish from the Green River Formation of Wyoming. It's approximately 50 million years old, has great detail and is centered on a rectangularly cut piece of stone. It comes with an acrylic display stand.
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.