Tritemnodon

Tritemnodon; Temporal range: 50.3–46.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Early Eocene
	Restoration of Tritemnodon agilis
	Tritemnodon agilis skeleton
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Hyaenodonta
Genus:	†Tritemnodon; Matthew, 1906
Type species
	†Tritemnodon agilis; Marsh, 1872
Species
	†T. agilis (Marsh, 1872); †T. sp. [FMNH PM 55839] (Tomiya, 2021);
Synonyms
	synonyms of species: T. agilis: Limnocyon agilis (Marsh, 1872) ; Sinopa agilis (Matthew, 1901) ; Sinopa brevicalcaratus (Cope, 1872) ; Sinopa gracilis (Wortman, 1902) ; Stypolophus agilis ; Stypolophus brevicolcarabus (Cope, 1872) ; Stypolophus brevicalcaratus (Cope, 1872) ; ;

Tritemnodon ("three cutting teeth") was an extinct genus of placental mammals from extinct order Hyaenodonta, that lived in North America during the early Eocene.^[7]^[8] 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.

References

^ Matthew, W. D. (1906.) "The Osteology of Sinopa, a Creodont Mammal of the Middle Eocene." Proc. U. S. Nat. Mus., Vol. XXX, pp. 203-233, pl. XVI
^ Tomiya, S.; Zack, S. P.; Spaulding, M.; Flynn, J. J. (2021). "Carnivorous mammals from the middle Eocene Washakie Formation, Wyoming, USA, and their diversity trajectory in a post-warming world". Journal of Paleontology. 95 (Supplement S82): 1–115. doi:10.1017/jpa.2020.74. hdl:2433/274918.
^ 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
^ Gingerich, Philip D.; Harvey A. Deutsch (1989). "Systematics and evolution of early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming". Museum of Paleontology, University of Michigan. 27 (13): 327–391.
^ Naoko Eg (2004.) "A new genus and species of hyaenodontid creodont from the Pondaung Formation (Eocene, Myanmar)" Journal of Vertebrate Paleontology 24(2): 502–506 doi:10.1671/2481

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[1] Matthew, W. D. (1906.) "The Osteology of Sinopa, a Creodont Mammal of the Middle Eocene." Proc. U. S. Nat. Mus., Vol. XXX, pp. 203-233, pl. XVI

[2] Tomiya, S.; Zack, S. P.; Spaulding, M.; Flynn, J. J. (2021). "Carnivorous mammals from the middle Eocene Washakie Formation, Wyoming, USA, and their diversity trajectory in a post-warming world". Journal of Paleontology. 95 (Supplement S82): 1–115. doi:10.1017/jpa.2020.74. hdl:2433/274918.

[3] O. C. Marsh (1872.) "Preliminary description of new Tertiary mammals. Part II." American Journal of Science 4(21):202-224

[4] Matthew, W. D. (1901.) "Additional observations on the Creodonta." Bulletin of the American Museum of Natural History, 14: 1-38

[5] 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

[6] J. L. Wortman (1902.) "Studies of Eocene Mammalia in the Marsh Collection, Peabody Museum." The American Journal of Science, series 4 13:433-448

[7] Gingerich, Philip D.; Harvey A. Deutsch (1989). "Systematics and evolution of early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming". Museum of Paleontology, University of Michigan. 27 (13): 327–391.

[8] Naoko Eg (2004.) "A new genus and species of hyaenodontid creodont from the Pondaung Formation (Eocene, Myanmar)" Journal of Vertebrate Paleontology 24(2): 502–506 doi:10.1671/2481

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Tritemnodon Temporal range: 50.3–46.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Early Eocene

Restoration of Tritemnodon agilis

Tritemnodon agilis skeleton
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Hyaenodonta
Genus:	†Tritemnodon Matthew, 1906^[1]
Type species
†Tritemnodon agilis Marsh, 1872^[3]
Species
†T. agilis (Marsh, 1872) †T. sp. [FMNH PM 55839] (Tomiya, 2021)^[2]
Synonyms
synonyms of species: T. agilis: Limnocyon agilis (Marsh, 1872) Sinopa agilis (Matthew, 1901)^[4] Sinopa brevicalcaratus (Cope, 1872)^[5] Sinopa gracilis (Wortman, 1902)^[6] Stypolophus agilis Stypolophus brevicolcarabus (Cope, 1872) Stypolophus brevicalcaratus (Cope, 1872)