PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Equus caballus (horse)

Mammalia - Perissodactyla - Equidae

Taxonomy

Equus caballus was named by Linnaeus (1758). It is extant.

Subspecies

E. ferus

Sister species lacking formal opinion data

E. algericus, E. altidens, E. bressanus, E. ferus, E. germanicus, E. helmei, E. hydruntinus, E. livenzovensis, E. marxi, E. mauritanicus, E. mosbachensis, E. namadicus, E. petraloniensis, E. robustus, E. simionescui, E. stehlini, E. valeriani, E. verae, E. helmei, E. koobiforensis, E. oldowayensis

Synonyms

Equus neogaeus was named by Lund (1840).

It was recombined as Hippidium neogaeum by Lydekker (1894); it was synonymized subjectively with Hippidion principale by Alberdi and Prado (1993); it was recombined as Equus (Amerhippus) neogeus by Zurita et al. (2004) and Rincón et al. (2006); it was synonymized subjectively with Equus caballus by Orlando et al. (2008).
Equus hippagrus was named by Smith (1841). It is extant.

It was recombined as Equus asinus hippagrus by Schomber (1963); it was synonymized subjectively with Equus caballus by Groves and Smeenk (2007).
Equus curvidens was named by Owen (1845).

It was synonymized subjectively with Equus fraternus by Hay (1902); it was considered a nomen dubium by Gidley (1901); it was synonymized subjectively with Equus (Amerhippus) neogeus by Prado and Alberdi (1994).
Equus rectidens was named by Gervais and Ameghino (1880).

It was synonymized subjectively with Equus curvidens by Lydekker (1894).
Hipphaplus bravardi was named by Ameghino (1889).

It was synonymized subjectively with Hippidium neogaeum by Lydekker (1894).

Synonymy list

Year	Name and author
1758	Equus caballus Linnaeus
1840	Equus neogaeus Lund
1841	Equus hippagrus Smith p. 294
1845	Equus curvidens Owen p. 236
1847	Equus curvidens Leidy p. 263
1880	Equus rectidens Gervais and Ameghino p. 93
1889	Hipphaplus bravardi Ameghino p. 552
1894	Equus curvidens Lydekker p. 73
1894	Hippidium neogaeum Lydekker p. 75
1902	Equus caballus Hay p. 622
1911	Equus caballus Thomas p. 154
1926	Equus curvidens Oliver Schneider p. 149
1927	Equus caballus Boule and De Villeneuve p. 37
1955	Equus caballus Quinn p. 58
1957	Equus caballus Quinn p. 21
1963	Equus asinus hippagrus Schomber
2004	Equus (Amerhippus) neogeus Zurita et al.
2005	Equus caballus Wilson and Reeder
2006	Equus (Amerhippus) neogeus Rincón et al.

Is something missing? Join the Paleobiology Database and enter the data

Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia

Rank	Name	Author
—	Theriamorpha	(Rowe 1993)
—	Theriiformes	()
—	Trechnotheria
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Panperissodactyla
superorder	Perissodactylamorpha
order	Perissodactyla	()
superfamily	Equoidea
family	Equidae
subfamily	Equinae
tribe	Equini
genus	Equus
species	caballus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Equus caballus Linnaeus 1758 [horse]

show all | hide all

Equus caballus ferus Boddaert 1785

Invalid names: Equus (Amerhippus) neogeus Lund 1840 [synonym], Equus hippagrus Smith 1841 [synonym]

Diagnosis

No diagnoses are available