| Sinohippus | |
|---|---|
 | |
| Sinohippus sampelayoi holotype | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Perissodactyla |
| Family: | Equidae |
| Subfamily: | † Anchitheriinae |
| Genus: | † Sinohippus Zhai, 1962 |
| Species | |
| |
Sinohippus ("Chinese horse") is an extinct equid genus belonging to the subfamily Anchitheriinae. [1]
Equidae is the taxonomic family of horses and related animals, including the extant horses, donkeys, and zebras, and many other species known only from fossils. All extant species are in the genus Equus, which originated in North America. Equidae belongs to the order Perissodactyla, which includes the extant tapirs and rhinoceros, and several extinct families.
The genus Aesculus, with species called buckeye and horse chestnut, comprises 13–19 species of flowering plants in the family Sapindaceae. They are trees and shrubs native to the temperate Northern Hemisphere, with six species native to North America and seven to thirteen species native to Eurasia. Several hybrids occur. Aesculus exhibits a classical Arcto-Tertiary distribution.
Equus is a genus of mammals in the family Equidae, which includes horses, donkeys, and zebras. Within the Equidae, Equus is the only recognized extant genus, comprising seven living species. Like Equidae more broadly, Equus has numerous extinct species known only from fossils. The genus most likely originated in North America and spread quickly to the Old World. Equines are odd-toed ungulates with slender legs, long heads, relatively long necks, manes, and long tails. All species are herbivorous, and mostly grazers, with simpler digestive systems than ruminants but able to subsist on lower-quality vegetation.
Tapeworms of the order Cyclophyllidea are the most important cestode parasites of humans and domesticated animals. All have multiple proglottid "segments", and all have four suckers on their scolices (heads), though some may have other structures, as well. Proglottids of this order have genital openings on one side, and a compact yolk gland or vitellarium posterior to the ovary.
Anchitherium was a fossil horse with a three-toed hoof.
Eohippus is an extinct genus of small equid ungulates. The only species is E. angustidens, which was long considered a species of Hyracotherium. Its remains have been identified in North America and date to the Early Eocene (Ypresian) stage.
The wild horse is a species of the genus Equus, which includes as subspecies the modern domesticated horse as well as the undomesticated European wild horse, and the endangered Przewalski's horse. The European horse known as the tarpan that went extinct in the late 1800s has previously been classified as a subspecies of wild horse, but more recent studied have cast doubt on whether those horses were truly wild, or if they actually were feral horses or hybrids.
The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized, forest-dwelling Eohippus into the modern horse. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the modern horse than of any other animal. Much of this evolution took place in North America, where horses originated but became extinct about 10,000 years ago.
Epihippus is an extinct genus of the modern horse family Equidae that lived in the Eocene, from 46 to 38 million years ago.
Hippotragus is a genus of antelopes which includes two living and one recently extinct species, as well as some fossil relatives. The name comes from Greek ἵππος (híppos), "horse", and τράγος (trágos), "he-goat".
Cormohipparion is an extinct genus of horse belonging to the tribe Hipparionini that lived in North America during the late Miocene to Pliocene. This ancient species of horse grew up to 3 feet long.
Hypohippus is an extinct genus of three-toed horse, which lived 17–11 million years ago. It was the size of a pony at 1.8 meters long. and fossils of it have been found in Nebraska, Colorado, and Montana.
The Anchitheriinae are an extinct subfamily of the Perissodactyla family Equidae, the same family which includes modern horses, zebras and donkeys. This subfamily is more primitive than the living members of the family. The group first appeared with Mesohippus in North America during the middle Eocene and thrived until the late Miocene. The subfamily continued in Eurasia with the genus Sinohippus until the early Pliocene, when it finally became extinct. This subfamily were considered browsers with their more ancestral low-crowned molars, in contrast with the modern, specialized grazer species today.
Equini is the only living tribe of the horse subfamily Equinae, which has lived worldwide since the Hemingfordian stage of the Middle Miocene. It is considered to be a monophyletic clade.
Equinae is a subfamily of the family Equidae, which have lived worldwide from the Hemingfordian stage of the Early Miocene onwards. They are thought to be a monophyletic grouping. Members of the subfamily are referred to as equines; the only extant equines are the horses, asses, and zebras of the genus Equus.
Allantocystis is a genus in the family Allantocystidae. Its only species is Allantocystis dasyhelei, a gregarine parasite of the larval biting midge Dasyhelea obscura.
Horses have been a crucial component of American life and culture since the founding of the nation. In 2008, there were an estimated 9.2 million horses in the United States, with 4.6 million citizens involved in businesses related to horses. Notably, there are about 82,000 feral horses that roam freely in the wild in certain parts of the country, mostly in the Western United States.
 | This equine-related article is a stub. You can help Wikipedia by expanding it. |
 | This prehistoric odd-toed ungulate-related article is a stub. You can help Wikipedia by expanding it. |