These images are of Hexanchus microdon fossil shark teeth on display at Mace Brown Museum of Natural History (August 2017). This animal was also known as a six-gilled cow shark. They date to the Eocene Epoch (about 55-50 million years ago), Paleogene Period. The fossils were found in Atlas Mountains, phosphate pits Ouled Abdoun Basin Morocco.
The Mace Brown Museum of Natural History is located at the College of Charleston, 202 Calhoun Street, 2nd Floor, Charleston, South Carolina 29424.
Learn more at their blog: http://blogs.cofc.edu/macebrownmuseum/
