Mammalia - Theriamorpha - Phenacodontidae
Parent taxon: Phenacodonta according to J. D. Archibald 1998
See also Ameghino 1897, Carroll 1988, Chow et al. 1977, Cope 1889, Flower and Lydekker 1891, Gregory 1910, Hay 1902, Jaekel 1911, Rose et al. 2012 and Thewissen et al. 2001
Sister taxon: Olbitherium
Subtaxa: Almogaver Copecion Eodesmatodon Lophocion Meniscotheriinae Phenacodus Tetraclaenodon
Type: Phenacodus
Ecology: ground dwelling herbivore
Distribution:
• Eocene of Belgium (2 collections), China (2), France (3), Mexico (2), the United Kingdom (1), United States (469: California, Colorado, Mississippi, New Mexico, Texas, Utah, Wyoming)
• Clarkforkian of United States (281: Colorado, Montana, Wyoming)
• Cf2 of United States (2: Wyoming)
• Cf3 of United States (2: Wyoming)
• Cf1 of United States (1: Wyoming)
• Paleocene to Eocene of United States (2: California, Wyoming)
• Paleocene of Canada (15: Alberta, Saskatchewan), United States (189: California, Colorado, Maryland, Montana, New Mexico, North Dakota, Texas, Wyoming)
• Tertiary of Spain (1)
Total: 972 collections including 1288 occurrences