Mammalia - Perissodactyla - Hyracodontidae
Alternative spelling: Rhinoceros (Hyracodon)
Synonym: Mesamynodon Peterson 1931
Full reference: J. Leidy. 1856. Notices of several genera of extinct Mammalia, previously less perfectly characterized. Proceedings of the Academy of Natural Sciences of Philadelphia 8:91-95
Parent taxon: Hyracodontidae according to H. Wang et al. 2016
See also Carroll 1988, Cope 1881, Ferrusquia-Villafranca 1969, Hay 1902, Holbrook 1999, Lambe 1908, Leidy 1856, Leidy 1857, Prothero 1998, Prothero and Schoch 1989, Prothero and Schoch 1989, Radinsky 1966, Rasmussen et al. 1999, Scott 1913 and Wood 1960
Sister taxa: Allaceropinae, Alloceropinae, Ardynia, Epitriplopus, Hyracodontinae, Ilianodon, Pataecops, Praeaceratherium, Prohyracodon, Rhodopagus, Triplopides, Triplopodinae, Triplopus, Ulania, Yimengia
Subtaxa: Hyracodon browni Hyracodon leidyanus Hyracodon major Hyracodon medius Hyracodon nebraskensis Hyracodon petersoni Hyracodon primus Hyracodon priscidens
Ecology: ground dwelling browser
Distribution:
• Arikareean of United States (2: Nebraska collections)
• Oligocene of United States (48: Colorado, Montana, Nebraska, North Dakota, South Dakota, Wyoming)
• Eocene to Oligocene of United States (1: Wyoming)
• Eocene of Canada (4: Saskatchewan), Mexico (1), United States (52: Colorado, Georgia, Montana, Nebraska, New Mexico, South Dakota, Texas, Utah, Wyoming)
Total: 108 collections including 110 occurrences
Specimen images are retrieved through the ePANDDA API.
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