Fish Fossil - Knightia Eoceana Selenite or chemical cleaning agent

or chemical cleaning agent

This Fossil has been broken and repaired

It has a long archaeological record of human use as a cutting or carving tool

Measurement is of box

the crab fossil's color can vary from brown to gold depending on what minerals were present at time of fossilization

Fish Fossil - Knightia Eoceana Selenite or chemical cleaning agentDuring the Eocene, 40 50 million years ago, vast shoals of freshwater fish inhabited a large shallow inland sea across the American West. The herring like fish of the genus Knightia were far and away the most abundant freshwater fish during this era, and because of this they are one of the most frequently found vertebrate fossils on earth. Originating from the famed Green River Formation in Wyoming, fossils of Knightia eocaena and their close