Classification of Osborn and Wortman 1895
Fm. Equidae Gray 1821 [horse]
show all | hide all
Subfm. †Anchitheriinae Leidy 1869 [anchitheriine horse]
hide
G. †Mesohippus Marsh 1875
hide
†Mesohippus bairdii Leidy 1850
†Mesohippus copei Osborn and Wortman 1895
†Mesohippus intermedius Osborn and Wortman 1895
G. †Colodon Marsh 1890
show all | hide all
†Colodon dakotensis Osborn and Wortman 1895
†Colodon longipes Osborn and Wortman 1894
†Colodon procuspidatus Osborn and Wortman 1895
†Aceratherium tridactylum Osborn 1893
show all | hide all
Invalid names: Diceratherium proavitum Hatcher 1894 [synonym]
†Mesohippus bairdi Leidy 1850
show all | hide all
Invalid names: Anchitherium celer Marsh 1874 [synonym], Anchitherium cuneatum Cope 1873 [synonym], Anchitherium exoletum Cope 1874 [synonym]
Fm. †Titanotheriidae
show all | hide all
G. †Titanotherium Leidy 1852
hide
†Titanotherium dispar Marsh 1887
†Titanotherium validum Marsh 1891
Invalid names: Brontops Marsh 1887 [synonym]