Anatomy. The largest odd-toed ungulates are rhinoceroses, and the extinct Paraceratherium, a hornless rhino from the Oligocene, is considered one of the largest land mammals of all time. At the other extreme, an early member of the order, the prehistoric horse Eohippus, had a withers height of only 30 to 60 cm (12 to 24 in). Apart from dwarf varieties of the domestic horse and …

The classification of artiodactyls was hotly debated because the ocean-dwelling cetaceans evolved from the land-dwelling even-toed ungulates. Some semiaquatic even-toed ungulates (hippopotamuses) are more closely related to the ocean-dwelling cetaceans than to the other even-toed ungulates.. This makes the Artiodactyla as traditionally defined a paraphyletic taxon, …

Megacerops ("large-horned face", from méga-"large" + kéras "horn" + ōps "face") is an extinct genus of the prehistoric odd-toed ungulate (hoofed mammal) family Brontotheriidae, an extinct group of rhinoceros-like browsers related to horses.It was endemic to North America during the Late Eocene epoch (38–33.9 mya), existing for approximately

Etymology. Ungulate is from the Late Latin adjective ungulatus, "hoofed". Ungulatus is a diminutive form of Latin unguis, "nail" (finger nail; toe nail).. Classifications History. Ungulata is a clade (or in some taxonomies, a grand order) of mammals. The two orders of ungulates were the Perissodactyla (odd-toed ungulates) and Artiodactyla (even-toed ungulates).

The domestic donkey is a hoofed mammal in the family Equidae, the same family as the horse.It derives from the African wild ass, Equus africanus, and may be classified either as a subspecies thereof, Equus africanus asinus, or as a separate species, Equus asinus.: 1 It was domesticated in Africa some 5000–7000 years ago,: 2 : 3715 and has been used mainly as a working animal …

A hoof (PL: hooves or hoofs) is the tip of a toe of an ungulate mammal, strengthened by a thick and horny keratin covering.. Artiodactyls are even-toed ungulates, meaning that these species have an even number of digits on each foot. Ruminants, with two main digits, are the largest group. Examples include giraffes, deer, bison, cattle, goats and sheep. ...

As of September 2016, the International Union for Conservation of Nature (IUCN) lists 474 endangered mammalian species. 8.6% of all evaluated mammalian species are listed as endangered. The IUCN also lists 86 mammalian subspecies as endangered.

The odd-toed ungulates are browsing and grazing mammals. They are usually large to very large, and have relatively simple stomachs and a large middle toe. Following the interchange with North America, South America's odd-toed ungulates included equids of genus Equus as well as tapirs. Equids died out in both North and South America around the ...

Phenacodontidae is the most recent family in the order Condylarthra believed to be the ancestral to the odd-toed ungulates. [citation needed] It contains the genera Almogaver, Copecion, Ectocion, Eodesmatodon, Meniscotherium, Ordathspidotherium, Phenacodus and Pleuraspidotherium.The family lived from the Early Paleocene to the Middle Eocene in Europe …

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