Clade Mammaliaformes Rowe 1988 [Rowe 1988]
   [crown] Class Mammalia Linnaeus, 1758 - mammals
     Subclass Theriiformes (Rowe, 1988) M.C. McKenna & S.K. Bell, 1997 see Division Theriiformes
       Infraclass Holotheria (Wible et al., 1995) M.C. McKenna & S.K. Bell, 1997 see [unranked] Holotheria
         Superlegion Trechnotheria McKenna, 1975 see [unranked] Trechnotheria McKenna, 1975
           Legion Cladotheria McKenna, 1975 see [unranked] Cladotheria McKenna, 1975
             Sublegion Zatheria McKenna, 1975 see [unranked] Zatheria McKenna, 1975
               Infralegion Tribosphenida McKenna, 1975 see Sublegion Boreosphenida
                 Supercohort Theria (Parker & Haswell, 1897) M.C. McKenna & S.K. Bell, 1997 - therians see [unranked] Theria
                   Cohort Placentalia (Owen, 1837) M.C. McKenna & S.K. Bell, 1997 - placentals
                     Magnorder Epitheria (McKenna, 1975) M.C. McKenna & S.K. Bell, 1997 see Cohort Placentalia (Owen, 1837) M.C. McKenna & S.K. Bell, 1997
                       Superorder Preptotheria (McKenna, 1975) McKenna, 1993
                         Grandorder Ungulata Linnaeus, 1766
                           Mirorder Eparctocyona McKenna, 1975
                             Order Cete Linnaeus, 1758 see Order Cetartiodactyla Montgelard et al., 1997
                               Suborder Cetacea (Brisson, 1762) M.C. McKenna & S.K. Bell, 1997 - cetaceans
                                 Infraorder Autoceta Haeckel, 1866
                                   01 Genus †Iniopsis Lydekker, 1893
                                   02 Genus †Microzeuglodon Stromer, 1903
                                   03 Genus †Oligodelphis Mchedlidze & Aslanova, 1968
                                   04 Genus †Mirocetus Mchedlidze, 1970
                                   05 Genus †Atropatenocetus Aslanova, 1977
                                   06 Genus †Kharthlidelphis Mchedlidze & Pilleri, 1988
                                   07 Genus †Archaeodelphis G.M. Allen, 1921
                                   08 Genus †Xenorophus Kellogg, 1923
                                   09 Genus †Ceterhinops Leidy, 1877
                                   10 Genus †Miodelphis L.E. Wilson, 1935
                                   11 Genus †Protodelphinus Dal Piaz, 1922
                                   12 Genus †Scaptodon Chapman, 1918
                                   13 Genus †Sinanodelphis Makiyama, 1936
                                   14 Genus †Imerodelphis Mchedlidze, 1959
                                   15 Genus †Stereodelphis Gervais, 1848
                                   16 Genus †Macrochirifer Brandt, 1874
                                   17 Genus †Delphinopsis J. Müller, 1853
                                   18 Genus †Heterodelphis Brandt, 1873
                                   19 Genus †Phocageneus Leidy, 1869
                                   20 Genus †Hadrodelphis Kellogg, 1966
                                   21 Genus †Nannolithax Kellogg, 1931
                                   22 Genus †Platylithax Kellogg, 1931
                                   23 Genus †Agabelus Cope, 1875
                                   24 Genus †Priscodelphinus Leidy, 1851
                                   25 Genus †Ixacanthus Cope, 1868
                                   26 Genus †Tretosphys Cope, 1868
                                   27 Genus †Belosphys Cope, 1875
                                   28 Genus †Pelodelphis Kellogg, 1955
                                   29 Genus †Araeodelphis Kellogg, 1957
                                   30 Genus †Graphiodon Leidy, 1870
                                   31 Genus †Oedolithax Kellogg, 1931
                                   32 Genus †Lamprolithax Kellogg, 1931
                                   33 Genus †Loxolithax Kellogg, 1931
                                   34 Genus †Delphinavus Lull, 1914
                                   35 Genus †Hesperocetus True, 1912
                                   36 Genus †Lonchodelphis Allen, 1924
                                   37 Genus †Incacetus Colbert, 1944
                                   38 Family †Agorophiidae Abel, 1913
                                   39 Superfamily †Squalodontoidea (Brandt, 1873) Simpson, 1945
                                   40 Parvorder Mysticeti (Cope, 1891) M.C. McKenna & S.K. Bell, 1997 - whalebone whales
                                   41 Parvorder Odontoceti (Flower, 1869) M.C. McKenna & S.K. Bell, 1997