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This was confirmed in a genetic study done in 2017, which subsumed all the specimens into the species E. francisci which was placed outside all extant horse species in the new genus Haringtonhippus [19], although its placement as a separate genus was subsequently questioned. [20] A separate genus of horse, Hippidion existed in South America. [21]
Rhinocerotidae contains five species of rhinoceroses split into four genera, Tapiridae contains four species of tapir in a single genus, and Equidae contains nine species in a single genus, including horses, donkeys, and zebras. Over 75 extinct Perissodactyla species have been discovered, though due to ongoing research and discoveries the exact ...
Besides the horse, there are six other species of genus Equus in the Equidae family. These are the ass or donkey, Equus asinus; the mountain zebra, Equus zebra; plains zebra, Equus quagga; Grévy's zebra, Equus grevyi; the kiang, Equus kiang; and the onager, Equus hemionus. [149] Horses can crossbreed with other members of their genus.
Equus conversidens, or the Mexican horse, was a Pleistocene species of horse, now extinct, that inhabited North America. Life restoration The holotype of Equus conversidens , a partial palate, was unearthed in Pleistocene deposits northeast of Mexico City, Mexico .
The binomial name often reflects limited knowledge or hearsay about a species at the time it was named. For instance Pan troglodytes, the chimpanzee, and Troglodytes troglodytes, the wren, are not necessarily cave-dwellers. Sometimes a genus name or specific descriptor is simply the Latin or Greek name for the animal (e.g. Canis is Latin for ...
Skeleton from the La Brea tar pits. Equus occidentalis (commonly known as the western horse) is an extinct species of wild horse that once inhabited North America, specifically the Southwestern United States, during the Pleistocene epoch.
Hippidion (meaning little horse) is an extinct genus of equine that lived in South America from the Late Pliocene to the end of the Late Pleistocene , between 2.5 million and 11,000 years ago. They were one of two lineages of equines native to South America during the Pleistocene epoch, alongside Equus (Amerhippus) neogeus .
Haringtonhippus is named after Charles Richard Harington. [3] It was originally described as a new Equus species, E. francisci, in 1915. [1] Dalquest (1979) considered Equus tau Owen, 1869, described from teeth in Mexico, a senior synonym of E. francisci, [7] while Equus quinni and E. arrelanoi were synonymized with E. francisci by Winans (1989). [8]