Classification of Wright 1998
†Chaenohyus decedens Cope 1879
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†Hyotherium americanum Scott and Osborn 1887
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†Palaeochoerus subaequans Cope 1879
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†Perchoerus minor Cook 1922
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†Prosthennops kernensis Colbert 1938
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†Thinohyus nanus Marsh 1894
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Fm. Tayassuidae Palmer 1897 [peccary]
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G. †Hesperhys Douglass 1903
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†Hesperhys pinensis Matthew 1907
Invalid names: Desmathyus Matthew 1907 [synonym]
Subfm. Tayassuinae Palmer 1897
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G. Catagonus Ameghino 1904 [Chacoan peccary]
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†Catagonus brachydontus Dalquest and Mooser 1980
†Catagonus metropolitanus Ameghino 1904
†Catagonus stenocephalus Lund 1880
Catagonus wagneri Wetzel 1975
G. Dicotyles Cuvier 1817
G. †Mylohyus Cope 1869
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†Mylohyus elmorei White 1942
†Mylohyus fossilis Leidy 1860
†Mylohyus longirostris Thorpe 1924
G. †Platygonus Leconte 1848
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†Platygonus brachirostris Shotwell 1956
†Platygonus compressus Leconte 1848
†Platygonus cumberlandensis Gidley 1920
†Platygonus oregonensis Colbert 1938
†Platygonus pearcei Gazin 1938
Invalid names: Platygonus rex Marsh 1894 [nomen dubium]
G. †Prosthennops Matthew and Gidley 1904
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†Prosthennops niobrarensis Colbert 1935
†Prosthennops serus Cope 1877
†Prosthennops xiphodonticus Barbour 1925
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Invalid names: Dyseohyus stirtoni Woodburne 1969 [synonym]
G. Tayassu Fischer 1814
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†Tayassu edensis Frick 1921
Tayassu pecari Link 1795 [white-lipped peccary]
Invalid names: Chaenohyus Cope 1879 [nomen dubium], Cynorca Cope 1867 [nomen dubium]
G. †Bothrolabis Cope 1888
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Invalid names: Bothrolabis rostratus Cope 1888 [nomen dubium]
Subg. †Thinohyus (Bothrolabis) Cope 1888
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Invalid names: Thinohyus (Bothrolabis) osmonti Sinclair 1905 [nomen dubium]