This image is of fossil teeth on display at Mace Brown Museum of Natural History (August 2017). It was found in Cross Formation, Pregnall Member of Dorchester County, South Carolina, USA and dates to the Paleogene Period in the Eocene Epoch (36-34 million years ago).
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/