Tritemnodon ("three cutting teeth") was an extinct genus of placental mammals from extinct order Hyaenodonta, that lived in North America during the early Eocene.[6][7] Fossils of Tritemnodon agilis have been found in Utah and Wyoming (Willwood Formation of Big Horn County and the Lower Bridger Formation of Uinta County). It was the size of a wolf.
^O. C. Marsh (1872.) "Preliminary description of new Tertiary mammals. Part II." American Journal of Science 4(21):202-224
^Matthew, W. D. (1901.) "Additional observations on the Creodonta." Bulletin of the American Museum of Natural History, 14: 1-38
^E. D. Cope (1872.) "Third account of new Vertebrata from the Bridger Eocene of Wyoming Valley." Proceedings of the American Philosophical Society (separate) 1-4
^J. L. Wortman (1902.) "Studies of Eocene Mammalia in the Marsh Collection, Peabody Museum." The American Journal of Science, series 4 13:433-448