This image is of a Trigonia osborni jaw fossil on display at Mace Brown Museum of Natural History (August 2017). The animal it belonged ...

This image is of an Archaeocidaris sp sea urchin fossil on display at Mace Brown Museum of Natural History (August 2017). It dates to the...

These images are of Hexanchus microdon fossil shark teeth on display at Mace Brown Museum of Natural History (August 2017). This animal ...