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Miohippus
Taxonomy
Miohippus was named by Marsh (1874). Its type is Miohippus annectens.
It was synonymized subjectively with Mesohippus by Matthew (1899).
It was assigned to Hyracotheriinae by Hay (1902); to Anchitheriinae by MacFadden (1998); and to Equidae by Marsh (1874), Scott (1913), Osborn (1918), Hay (1930), Stirton (1940), Carroll (1988), Prothero and Schoch (1989) and Lofgren et al. (2020).
It was synonymized subjectively with Mesohippus by Matthew (1899).
It was assigned to Hyracotheriinae by Hay (1902); to Anchitheriinae by MacFadden (1998); and to Equidae by Marsh (1874), Scott (1913), Osborn (1918), Hay (1930), Stirton (1940), Carroll (1988), Prothero and Schoch (1989) and Lofgren et al. (2020).
Species
M. anceps, M. annectens (syn. M. crassicuspis) (type species), M. assiniboiensis (syn. Mesohippus planidens), M. condoni, M. equiceps (syn. Anchitherium brachylophus, Mesohippus acutidens), M. equinanus, M. gemmarosae, M. gidleyi (syn. Mesohippus grallipes, M. validus), M. grandis, M. intermedius, M. longicristis, M. obliquidens (syn. Mesohippus eulophus, Mesohippus meteulophus, Pediohippus antiquus, Mesohippus brachystylus), M. primus, M. quartus, M. taxus
Synonyms
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Synonymy list
Year | Name and author |
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1874 | Miohippus Marsh |
1902 | Miohippus Hay p. 612 |
1908 | Altippus Douglass |
1913 | Miohippus Scott p. 290 |
1918 | Miohippus Osborn |
1930 | Miohippus Hay |
1935 | Pediohippus Schlaikjer |
1940 | Miohippus Stirton |
1988 | Miohippus Carroll |
1989 | Miohippus Prothero and Schoch p. 531 |
1998 | Miohippus MacFadden p. 544 |
2020 | Miohippus Lofgren et al. |
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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.
G. †Miohippus Marsh 1874
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†Miohippus anceps Marsh 1874
†Miohippus condoni Leidy 1870
†Miohippus equiceps Cope 1878
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Invalid names: Anchitherium brachylophus Cope 1879 [synonym], Mesohippus acutidens Sinclair 1905 [synonym]
†Miohippus equinanus Osborn 1918
†Miohippus gemmarosae Osborn 1918
†Miohippus gidleyi Osborn 1904
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Invalid names: Mesohippus grallipes Sinclair 1925 [synonym], Miohippus validus Osborn 1904 [synonym]
†Miohippus grandis Clark and Beerbower 1967
†Miohippus intermedius Osborn and Wortman 1895
†Miohippus longicristis Cope 1878
†Miohippus obliquidens Osborn 1904
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Invalid names: Mesohippus brachystylus Osborn 1904 [synonym], Mesohippus eulophus Osborn 1904 [synonym], Mesohippus meteulophus Osborn 1904 [synonym], Pediohippus antiquus Schlaikjer 1935 [synonym]
†Miohippus primus Osborn 1918
†Miohippus quartus Osborn 1918
†Miohippus taxus Douglass 1908
Invalid names: Altippus Douglass 1908 [synonym], Pediohippus Schlaikjer 1935 [synonym]
Diagnosis
No diagnoses are available