Classification of Stevens and Stevens 1996

†Eucrotaphus jacksoni Leidy 1850
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G. †Eucrotaphus Leidy 1850
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Or. Artiodactyla Owen 1848 [even-toed ungulate]
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Fm. †Merycoidodontidae Cook 1912 [oreodont]
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Subfm. †Brachycrurinae Stevens and Stevens 1996
Subfm. †Eporeodontinae Schultz and Falkenbach 1968
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G. †Eporeodon Marsh 1875
Subfm. †Leptaucheniinae Schultz and Falkenbach 1940
Subfm. †Merychyinae Simpson 1945
Subfm. †Merycochoerinae Schultz and Falkenbach 1940
Subfm. †Merycoidodontinae Hay 1902
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G. †Merycoidodon Leidy 1848
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Subg. †Merycoidodon (Merycoidodon) Stevens and Stevens 1996
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Invalid names: Merycoidodon periculorum Cope 1884 [synonym]
†Merycoidodon (Merycoidodon) presidioensis Stevens and Stevens 1996
Subg. †Merycoidodon (Otarohyus) Schultz and Falkenbach 1968
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Invalid names: Desmatochoerus (Paradesmatochoerus) anthonyi Schultz and Falkenbach 1968 [synonym]
†Merycoidodon dunagani Wilson 1971
Invalid names: Blickohyus Schultz and Falkenbach 1968 [synonym], Genetochoerus Schultz and Falkenbach 1968 [synonym], Oreodon Leidy 1851 [synonym], Otionohyus Schultz and Falkenbach 1968 [synonym], Paramerycoidodon Schultz and Falkenbach 1968 [synonym], Prodesmatochoerus Schultz and Falkenbach 1954 [synonym], Promesoreodon Schultz and Falkenbach 1949 [synonym], Subdesmatochoerus Schultz and Falkenbach 1954 [synonym]
G. †Mesoreodon Scott 1893
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†Mesoreodon chelonyx Scott 1893
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Invalid names: Desmatochoerus (Paradesmatochoerus) sanfordi Schultz and Falkenbach 1954 [synonym], Eporeodon meagherensis Schultz and Falkenbach 1968 [synonym], Eucrotaphus montanus Douglass 1907 [synonym], Mesoreodon danai Koerner 1940 [synonym], Mesoreodon intermedius Scott 1893 [synonym], Mesoreodon wheeleri Koerner 1940 [synonym]
†Mesoreodon minor Douglass 1903
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Invalid names: Desmatochoerus (Paradesmatochoerus) grangeri Schultz and Falkenbach 1954 [synonym], Desmatochoerus (Paradesmatochoerus) monroecreekensis Schultz and Falkenbach 1954 [synonym], Desmatochoerus (Paradesmatochoerus) wyomingensis Schultz and Falkenbach 1954 [synonym], Desmatochoerus macrosynaphus Riel 1964 [synonym], Eporeodon cheeki Schlaikjer 1934 [synonym], Mesoreodon scotti Schlaikjer 1934 [synonym], Pseudodesmatochoerus wascoensis Schultz and Falkenbach 1954 [synonym]
Subfm. †Miniochoerinae Schultz and Falkenbach 1956
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G. †Miniochoerus Schultz and Falkenbach 1956
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†Miniochoerus affinis Leidy 1869
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Invalid names: Merycoidodon platycephalus Thorpe 1921 [synonym], Miniochoerus battlecreekensis Schultz and Falkenbach 1956 [synonym], Oreodon coloradoensis Matthew 1909 [synonym], Stenopsochoerus sternbergi Schultz and Falkenbach 1956 [synonym]
†Miniochoerus chadronensis Schultz and Falkenbach 1956
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Invalid names: Parastenopsochoerus conversensis Schultz and Falkenbach 1956 [synonym], Stenopsochoerus (Pseudostenopsochoerus) douglasensis Schultz and Falkenbach 1956 [synonym], Stenopsochoerus reideri Schultz and Falkenbach 1956 [synonym]
†Miniochoerus forsythae Schultz and Falkenbach 1968
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Invalid names: Otionohyus wardi degrooti Schultz and Falkenbach 1968 [invalid subgroup], Prodesmatochoerus natronensis Schultz and Falkenbach 1954 [synonym]
†Miniochoerus gracilis Leidy 1851
†Miniochoerus starkensis Schultz and Falkenbach 1956
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Invalid names: Miniochoerus (Paraminiochoerus) helprini Schultz and Falkenbach 1956 [synonym], Miniochoerus (Paraminiochoerus) ottensi Schultz and Falkenbach 1956 [synonym], Miniochoerus cheyennensis Schultz and Falkenbach 1956 [synonym], Miniochoerus nicholsae Schultz and Falkenbach 1956 [synonym], Platyochoerus hatcreekensis Schultz and Falkenbach 1956 [synonym], Platyochoerus heartensis Schultz and Falkenbach 1956 [synonym], Stenopsochoerus berardae Schultz and Falkenbach 1956 [synonym], Stenopsochoerus joderensis Schultz and Falkenbach 1956 [synonym]
Invalid names: Miniochoerus (Paraminiochoerus) Schultz and Falkenbach 1956 [invalid subgroup], Parastenopsochoerus Schultz and Falkenbach 1956 [synonym], Platyochoerus Schultz and Falkenbach 1956 [synonym], Stenopsochoerus Schultz and Falkenbach 1956 [synonym], Stenopsochoerus (Pseudostenopsochoerus) Schultz and Falkenbach 1956 [invalid subgroup]
Subfm. †Oreonetinae Schultz and Falkenbach 1956
Subfm. †Phenacocoelinae Schultz and Falkenbach 1950
Subfm. †Promerycochoerinae Schultz and Falkenbach 1949
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G. †Desmatochoerus Thorpe 1921
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†Desmatochoerus megalodon Peterson 1907
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Invalid names: Promerycochoerus (Desmatochoerus) curvidens Thorpe 1921 [synonym], Promerycochoerus gregoryi Loomis 1924 [synonym]
Subfm. †Ticholeptinae Schultz and Falkenbach 1941
Subfm. †Ustatochoerinae Stevens and Stevens 1996
Invalid names: Desmatochoerinae Schultz and Falkenbach 1954 [invalid subgroup]
†Merycoidodon bullatus Leidy 1869
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Invalid names: Eporeodon cedrensis Matthew 1901 [synonym], Eporeodon socialis Marsh 1884 [synonym], Eucrotaphus dickinsonensis Douglass 1907 [synonym], Eucrotaphus helenae Douglass 1902 [synonym], Genetochoerus (Osbornohyus) geygani Schultz and Falkenbach 1968 [synonym], Genetochoerus (Osbornohyus) norbeckensis Schultz and Falkenbach 1968 [synonym], Merycoidodon (Anomerycoidodon) dani Schultz and Falkenbach 1968 [synonym], Merycoidodon (Blickohyus) galushai Schultz and Falkenbach 1968 [synonym], Paramerycoidodon (Barbourochoerus) bacai Schultz and Falkenbach 1968 [synonym]
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Invalid names: Merycoidodon lewisi Clark and Beerbower 1967 [synonym], Oreodon macrorhinus Douglass 1903 [synonym], Oreodon priscum Leidy 1851 [synonym], Oreodon robustum Douglass 1902 [synonym], Otionohyus vanderpooli Schultz and Falkenbach 1968 [synonym], Otionohyus wardi Schultz and Falkenbach 1968 [synonym], Paramerycoidodon georgei Schultz and Falkenbach 1968 [synonym], Prodesmatochoerus meekae Schultz and Falkenbach 1954 [synonym]
†Merycoidodon major Leidy 1853
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Invalid names: Genetochoerus (Osbornohyus) chamberlaini Schultz and Falkenbach 1968 [synonym], Merycoidodon lambi Schultz and Falkenbach 1968 [synonym], Merycoidodon lynchi Schultz and Falkenbach 1968 [synonym], Oreodon hybridus Leidy 1869 [synonym], Otionohyus (Otarohyus) alexi Schultz and Falkenbach 1968 [synonym], Paramerycoidodon (Gregoryochoerus) wanlessi Schultz and Falkenbach 1968 [synonym], Promesoreodon scanloni Schultz and Falkenbach 1949 [synonym], Pseudodesmatochoerus milleri Schultz and Falkenbach 1954 [synonym], Subdesmatochoerus shannonensis Schultz and Falkenbach 1954 [synonym]