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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 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.
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.
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.
Equinae is a subfamily of the family Equidae, known from the Hemingfordian stage of the Early Miocene (16 million years ago) onwards. [1] [2] They originated in North America, before dispersing to every continent except Australia and Antarctica.
Wild horse Temporal range: earliest Middle Pleistocene -Recent 0.8–0 Ma Pre๊ ๊ O S D C P T J K Pg N ↓ Top left: Equus ferus caballus (horses) Top right: Equus ferus przewalskii (Przewalski's horse) Below left: Equus ferus ferus † (tarpan) Below right: Equus ferus fossil from 9100 BC Conservation status Endangered (IUCN 3.1) Scientific classification Domain: Eukaryota Kingdom ...
Equus altidens is a medium-sized equine species [2] with an estimated body mass of around 338–374 kilograms (745–825 lb). [6] ST2 The species had slender limbs, the most slender among the "stenonines", including the metapodial bones, and is distinguished from other equines by a number of dental morphological features, including narrow and small crowns, and deep molar ectoflexid, though the ...
Molecular phylogenies indicate the most recent common ancestor of all modern equids (members of the genus Equus) lived about 5.6 (3.9–7.8) million years ago (Mya). Direct paleogenomic sequencing of a 700,000-year-old middle Pleistocene horse metapodial bone from Canada implies a more recent 4.07 Mya for the most recent common ancestor (MRCA ...