Hagerman horse

Hagerman horse
Temporal range:
Mounted skeleton of a Hagerman horse
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Equidae
Genus: Equus
Species:
E. simplicidens
Binomial name
Equus simplicidens
Cope, 1892
Synonyms
  • Plesippus shoshonensis Gidley, 1930

Equus simplicidens, also known as the Hagerman horse and American zebra, is an extinct species of equine native to North America during the Pliocene and Early Pleistocene. It is one of the oldest and most primitive members of the genus Equus. It is the state fossil of Idaho, where abundant remains of the species were discovered near the town of Hagerman in 1928.