Classification of Kelly and Lander 1988

Merychyus euryops Cope 1899
show all
G. †Stylonus Cope 1878
show all
Stylonus calamarius Cope 1875
Stylonus californicus Merriam 1915
Stylonus carrizoensis Dougherty 1940
hide
Invalid names: Merychippus tehachapiensis Buwalda and Lewis 1955 [synonym]
Stylonus isonesus Cope 1889
hide
Invalid names: Merychippus praecocidens Russell 1933 [synonym]
Stylonus missouriensis Douglass 1908
Stylonus quintus Osborn 1918
Stylonus sejunctus Cope 1874
Stylonus seversus Cope 1878
Stylonus stylodontus Lewis 1968
Fm. †Merycoidodontidae Cook 1912 [oreodont]
show all
G. †Brachycrus Matthew 1901
hide
Brachycrus laticeps Douglass 1900
hide
Invalid names: Merycochoerus altiramus Douglass 1901 [synonym], Merycochoerus buwaldi Merriam 1919 [synonym], Merycochoerus elrodi Douglass 1901 [synonym], Merycochoerus madisonius Douglass 1901 [synonym], Pronomotherium siouense Sinclair 1915 [synonym]
Brachycrus rusticus Leidy 1870
G. †Ticholeptus Cope 1878
hide
hide
Invalid names: Merycochoerus obliquidens Cope 1886 [synonym], Poatrephes paludicola Douglass 1903 [synonym], Ticholeptus hypsodus Loomis 1924 [synonym], Ticholeptus rileyi Schultz and Falkenbach 1941 [synonym], Ustatochoerus schrammi Schultz and Falkenbach 1941 [synonym]
Invalid names: Poatrephes Douglass 1903 [synonym]
G. †Merychyus Leidy 1858
show all
Merychyus crabilli Schultz and Falkenbach 1947
Merychyus leptoscelos Stevens et al. 1969
Merychyus major Leidy 1858
Merychyus medius Leidy 1858
hide
Invalid names: Merycochoerus coenopus Scott 1890 [synonym], Metoreodon novomexicanus Frick 1929 [synonym]
Merychyus relictus Matthew and Cook 1909
G. †Dinohippus Quinn 1955
show all
Dinohippus albidens Mooser 1968
Dinohippus coalingensis Merriam 1914
Dinohippus edensis Frick 1921
Dinohippus fossulatus Cope 1893
Dinohippus leidyanus Osborn 1918
Dinohippus osborni Frick 1921
Dinohippus spectans Cope 1880
G. †Merychippus Leidy 1856
show all
Merychippus sumani Merriam 1915
G. †Pliohippus Marsh 1874
show all
Pliohippus lullianus Troxell 1916
Pliohippus supremus Leidy 1869
G. †Pseudhipparion Ameghino 1904
show all
Pseudhipparion gratum Leidy 1869
Invalid names: Griphippus Quinn 1955 [synonym]
Mediochoerus mohavensis Schultz and Falkenbach 1941
show all
Invalid names: Mediochoerus blicki Schultz and Falkenbach 1941 [synonym]
Merychippus seversus Cope 1878
show all
Invalid names: Hippotherium isonesum Cope 1889 [synonym]
Merychyus elegans Leidy 1858
show all
Merychyus elegans smithi Douglass 1903
Invalid names: Merychyus arenarum Cope 1884 [synonym], Merychyus calaminthus Jahns 1940 [synonym], Merychyus calimontanus Dougherty 1940 [synonym], Merychyus delicatus Loomis 1924 [synonym], Merychyus jahnsi Whistler 1967 [synonym], Merychyus minimus Peterson 1907 [synonym], Merychyus paniensis Loomis 1924 [synonym], Merychyus verrucomalus Stevens 1970 [synonym], Ticholeptus tooheyi Schultz and Falkenbach 1941 [synonym]