Classification of the genus Equus
G. Equus Linnaeus 1758 [horse]
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†Equus (Asinus) cumminsi Cope 1893
Subg. †Equus (Hesperohippus) Hibbard 1955
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†Equus (Hesperohippus) mexicanus Hibbard 1955
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Invalid names: Equus midlandensis Quinn 1957 [synonym], Onager oviedoi Mooser 1959 [synonym]
Equus africanus Heuglin and Fitzinger 1866 [African wild ass]
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Equus africanus africanus Heuglin and Fitzinger 1866 [Nubian wild ass]
Equus africanus somaliensis Noack 1884 [Somali wild ass]
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Invalid names: Equus asinus aethiopicus Denman 1957 [synonym]
Invalid names: Equus africanus somalicus Sclater 1884 [synonym]
Equus asinus Linnaeus 1758 [donkey]
†Equus australis Moreno 1888
Equus caballus Linnaeus 1758 [horse]
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Equus caballus ferus Boddaert 1785
Invalid names: Equus (Amerhippus) neogeus Lund 1840 [synonym], Equus hippagrus Smith 1841 [synonym]
†Equus calobatus Troxell 1915
†Equus capensis Broom 1909
†Equus cedralensis Alberdi et al. 2014
†Equus coliemensis Lazarev 1980
†Equus complicatus Leidy 1858
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Invalid names: Equus americanus Leidy 1847 [replaced], Equus eous Cope 1895 [synonym], Equus major DeKay 1842 [synonym]
†Equus conversidens Owen 1869
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Invalid names: Equus barcenaei Cope 1884 [synonym], Onager zoyatalis Mooser 1959 [synonym]
†Equus eisenmannae Qiu et al. 2004
†Equus excelsus Leidy 1858
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Invalid names: Asinus aguascalentensis Mooser 1959 [synonym], Onager arellanoi Mooser 1959 [synonym], Onager hibbardi Mooser 1959 [synonym]
†Equus francisci Hay 1915
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Invalid names: Equus (Asinus) calobatus Troxell 1915 [synonym], Equus arrelanoi Mooser 1958 [synonym], Equus quinni Slaughter et al. 1962 [synonym]
†Equus fraternus Leidy 1858
†Equus fromanius Repenning et al. 1995
†Equus giganteus Gidley 1901
†Equus holmesi Hay 1920
†Equus intermedius Cope 1895
†Equus jubatus Hay 1927
†Equus laurentius Hay 1913
†Equus mexicanus Hibbard 1955
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Invalid names: Equus occidentalis Leidy 1865 [synonym], Equus pacificus Leidy 1868 [synonym], Equus scotti Gidley 1900 [synonym]
†Equus nalaikhaensis Kuznetsova and Zhegallo 1996
†Equus nearcticus Blake 1863
†Equus nevadanus Hay 1927
†Equus niobrarensis Hay 1913
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†Equus niobrarensis alaskae Winans 1989
Invalid names: Equus hatcheri Hay 1915 [synonym]
†Equus nobisi Pichardo 2004
†Equus pectinatus Cope 1901
Equus przewalskii Poliakov 1881 [Przewalski's horse]
Equus quagga Boddaert 1785 [plains zebra]
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Equus quagga boehmi Matschie 1892
Equus quagga burchelli Gray 1824 [Burchell's zebra]
Equus quagga chapmani Layard 1865
Equus quagga crawshayi De Winton 1896
Equus quagga quagga Boddaert 1785
Equus quagga borensis Lönnberg 1922
†Equus sanmeniensis Teilhard de Chardin and Piveteau 1930
†Equus santaeelenae Spillmann 1938
†Equus sivalensis Falconer and Cautley 1849
†Equus tabeti Arambourg 1970
†Equus yunnanensis Colbert 1940
Equus zebra Linnaeus 1758 [mountain zebra]
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Equus zebra hartmannae Matschie 1898 [Hartmann's mountain zebra]
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Invalid names: Equus matschiei Zukowsky 1924 [synonym], Equus penricei Thomas 1900 [synonym]
Equus zebra zebra Linnaeus 1758 [Cape mountain zebra]
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Invalid names: Equus campestris Gray 1852 [synonym], Equus indica Trouessart 1898 [synonym], Equus montanus Burchell 1822 [synonym], Equus zebra frederici Trouessart 1905 [synonym]
Invalid names: Allozebra Trumler 1961 [synonym], Asinus Gray 1822 [synonym], Asinus africanus aegyptiacus Heuglin and Fitzinger 1866 [synonym], Asinus asinus dianae Dollman 1935 [synonym], Dolichohippus Heller 1912 [synonym], Equus (Amerhippus) Hoffstetter 1950 [invalid subgroup], Equus (Parastilidequus) Mooser and Dalquest 1975 [invalid subgroup], Equus leidyi Hay 1913 [nomen vanum], Equus parastylidens Mooser 1959 [nomen dubium], Equus semiplicatus Cope 1893 [nomen dubium], Equus taeniopus Heuglin 1861 [nomen dubium], Haringtonhippus Heintzman et al. 2017 [synonym], Hippotherium princeps Leidy 1890 [nomen dubium], Hippotigris Hamilton-Smith 1841 [synonym], Kolpohippus van Hoepen 1930 [synonym], Kraterohippus van Hoepen 1930 [synonym], Neohippus Abel 1913 [synonym], Onager Brisson 1762 [synonym], Sterrohippus van Hopen 1930 [synonym], Tomolabis Cope 1892 [synonym]