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The genus Equus was first described by Carl Linnaeus in 1758. It is the only recognized extant genus in the family Equidae . [ 9 ] The first equids were small, dog-sized mammals (e.g. Eohippus ) adapted for browsing on shrubs during the Eocene , around 54 million years ago (Mya).
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. [1] It is one of the oldest and most primitive members of the genus Equus .
Equus suessenbornensis was a large sized equine having an estimated body mass over 500 kilograms (1,100 lb), with some individuals exceeding 650 kilograms (1,430 lb) making it larger than any other known "stenonine" other than Equus major. The species is distinguished from other equines by a number of characters of the morphology of the teeth.
Articles relating to the genus Equus, 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.
Equidae (commonly known as the horse family) is the taxonomic family of horses and related animals, including the extant horses, asses, and zebras, and many other species known only from fossils.
The horse (Equus ferus caballus) is a domesticated, one-toed, hoofed mammal. It belongs to the taxonomic family Equidae and is one of two extant subspecies of Equus ferus . The horse has evolved over the past 45 to 55 million years from a small multi-toed creature, Eohippus , into the large, single-toed animal of today.
Extinct equids restored to scale. Left to right: Mesohippus, Neohipparion, Eohippus, Equus scotti and Hypohippus. Wild horses have been known since prehistory from central Asia to Europe, with domestic horses and other equids being distributed more widely in the Old World, but no horses or equids of any type were found in the New World when European explorers reached the Americas.
Equoidea is a superfamily of hippomorph perissodactyls containing the Equidae, Palaeotheriidae, and other basal equoids of unclear affinities, of which members of the genus Equus are the only extant species.