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Temporal range: Barstovian-Clarendonian
~15.97–10.3 Ma
Hypohippus skeleton.jpg
Hypohippus osborni skeleton
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Equidae
Subfamily: Anchitheriinae
Genus: Hypohippus
Leidy, 1858
  • H. affinis Leidy 1858
  • H. osborni

Hypohippus ("Low horse") is an extinct genus of three-toed horse, which lived 17–11 million years ago.[1] It was the size of a pony, and fossils of it have been found in Nebraska, Colorado, and Montana.[2]



  1. ^ Janis, C. M.; Damuth, J.; Theodor, J. M. (2002). "The origins and evolution of the North American grassland biome: The story from the hoofed mammals". Palaeogeography, Palaeoclimatology, Palaeoecology. 177: 183. doi:10.1016/S0031-0182(01)00359-5.
  2. ^ Hypohippus