Inspire learning and exploration of the natural world with this beautiful  fossilized 'Knightia Eocaena' from the Eocene era. The Eocene era lasted around 56 to 33.9 million years ago.
The Knightia is an extinct genus of schooling, ray-finned, spindle-shaped, bony fish that shares the 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 than them. They fed on insects and smaller fish, and used gill rakers to feast on plankton. Knightia eocena is the largest of three species of Knightia, with an average length of approx 15 centimeters.
 
Measures: 8 inches x 6.5 inches