Cetacea/Artiodactyla Montgelard, Catzeflis & Douzery 1997
see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
1 Genus †Arctocyon Blainville, 1841
2.1 Genus †Hyopsodus Leidy, 1870
2.2.1 Genus †Phenacodus Cope, 1873
2.2.2 Genus †Meniscotherium Cope, 1874
3.1 Genus †Eoconodon Matthew & Granger, 1921
3.2.1 Genus †Andrewsarchus Osborn, 1924
3.2.2.1 Genus †Hapalodectes Matthew, 1909
3.2.2.2 Family †Mesonychidae Cope, 1875
3.2.3.1.1 Family †Raoellidae Sahni, Bhatia, Hartenberger, Jaeger, Kumar, Sudre & Vianey-Liaud, 1981
3.2.3.1.2 Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises
see Infraorder Cetacea Brisson, 1762
3.2.3.2 Other Artiodactyla Owen, 1848 - even-toed ungulates
see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997