Mammalia - Perissodactyla - Equidae
Synonyms: Helohippus Marsh 1892, Helotherium Cope 1872, Oligotomus Cope 1873
Full reference: O. C. Marsh. 1872. Preliminary description of new Tertiary mammals. Part II. American Journal of Science 4(21):202-224
Parent taxon: Equidae according to D. J. Froehlich 2002
See also Carroll 1988, Gazin 1976, Granger 1908, Hay 1902, Kitts 1957, MacFadden 1998, Marsh 1872, Osborn 1929, Prothero and Schoch 1989, Scott 1913 and Stirton 1940
Sister taxa: Anchitheriinae, Duchesnehippus, Eohippus, Epihippus, Equinae, Erihippus, Gobihippus, Hipphaplus, Hyperhippidium, Hypohippidium, Hyracotheriinae, Lophiopus, Minippus, Plesiohipparion, Pliolophus, Protohippinae, Protorohippus, Sifrhippus, Sivalhippus, Xenicohippus
Subtaxa: Orohippus (Aminippus) Orohippus agilis Orohippus major Orohippus progressus Orohippus proteros Orohippus pumilus Orohippus sylvaticus
Ecology: ground dwelling browser
Distribution:
• Eocene of United States (69: Colorado, Wyoming collections)
Total: 69 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.