Equini is a tribe

Tribe (biology)

In biology, a tribe is a taxonomic rank between family and genus. It is sometimes subdivided into subtribes.Some examples include the tribes: Canini, Acalypheae, Hominini, Bombini, and Antidesmeae.-See also:* Biological classification* Rank...

 of herbivorous mammals of the subfamily Equinae

Equinae

Equinae is a subfamily of the family Equidae, which lived worldwide from the Hemingfordian stage of the Early Miocene to present and in existence for approximately .-Taxonomy:...

, family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Equidae

Equidae

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 lived worldwide (except Australia) from the Hemingfordian stage of the Early Miocene

Early Miocene

The Early Miocene is a sub-epoch of the Miocene Epoch made up of two stages: the Aquitanian and Burdigalian stages....

 to present (20.6—0 mya) and in existence for approximately .

Taxonomy

Equini was named by Gray in 1821 and was considered monophyletic by MacFadden (1998).

Subtaxa

Astrohippus

Astrohippus

Astrohippus is an extinct member of the Equidae tribe Equini, the same tribe that contains the only living equid genus, Equus. Fossil remains have been found in the central United States, Florida, and the Mexican states of Chihuahua, Jalisco, and Guanajuato...

, Calippus

Calippus

Calippus may refer to:* Calippus of Syracuse, a student of Plato and Syracusean tyrant.* Callippus, a Greek astronomer and mathematician.* Calippus , a small lunar crater.* Calippus, an extinct relation of the modern horse....

, Dinohippus

Dinohippus

Dinohippus , is an extinct herbivorous mammal belonging to the tribe Equini, subfamily Equinae, which was endemic to North America from the late Hemphillian stage of the Miocene through the Zanclean stage of the Pliocene and in existence for approximately .-Taxonomy:Dinohippus was named by Quinn...

, Equus

Equus (genus)

Equus is a genus of animals in the family Equidae that includes horses, donkeys, and zebras. Within Equidae, Equus is the only extant genus. Like Equidae more broadly, Equus has numerous extinct species known only from fossils. This article deals primarily with the extant species.The term equine...

(synonymized with Allozebra, Asinus, Onager, Plesippus, Neohippus, Equus semiplicatus, Equus tau), Hippidion

Hippidion

Hippidion was a Welsh pony-sized horse that lived in South America during the Pleistocene epoch, between two million and 10,000 years ago....

, Onohippidium, Pliohippus

Pliohippus

Pliohippus is an extinct genus of Equidae, the "horse family". Pliohippus arose in the middle Miocene, around 12 million years ago, probably from Calippus. It was similar in appearance to Equus, but had two long extra toes on both sides of the hoof, externally barely visible as callused stubs...

, Protohippus

Protohippus

Protohippus is an extinct genus of horse....

(synomymized with Eoequus).