Genuine Knightia Fossil Fish in a Glass Display Box
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Genuine Knightia Fossil Fish in a Glass Display Box. This specimen comes in a labeled display box with color image and a brief written description. These make amazing gifts as they come perfectly displayed and labeled.
Here's 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.
8 x 6.5 x .75 inches