Synthetoceras sp. (L/M)

Synthetoceras is a genus of herbivorous artiodactyl in the family Protoceratidae. Its fossils are found in southwestern North America. This mammal originally lived from 10.6 to 5.3 million years ago, from the Tortonian to Zanclean ages of the Neogene period. Two species are known, Synthetoceras tricornatus and Synthetoceras davisorum.