Mammalia - Tribosphenida - Phenacodontidae
Alternative spelling: Meniscotheriidae
Parent taxon: Phenacodontidae according to T. J. D. Halliday et al. 2017
See also Archibald 1998, Carroll 1988, Cope 1889, Flower and Lydekker 1891, Gregory 1910, Hay 1902, Jaekel 1911 and López-Martínez and Peláez-Campomanes 1999
Sister taxa: Almogaver, Copecion, Eodesmatodon, Lophocion, Phenacodus, Tetraclaenodon
Subtaxa: Ectocion Meniscotherium
Type: Meniscotherium
Ecology: ground dwelling herbivore
Distribution:
• Eocene of Mexico (1 collection), United States (203: California, Colorado, Mississippi, New Mexico, Wyoming)
• Paleocene to Eocene of United States (1: Wyoming)
• Paleocene of Canada (12: Alberta, Saskatchewan), United States (237: Colorado, Montana, North Dakota, Wyoming)
Total: 454 collections including 464 occurrences