Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Clade Mammalia Linnaeus 1758 [Rowe 2020]
Count: [*†*] 14f;39g;22s; ‡1f;1g;1s; †1o;28f;239g;37s;1v
   Cetartiodactyla Montgelard, Catzeflis & Douzery 1997 see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
  Count: [*†*] 14f;39g;22s; ‡1f;1g;1s; †28f;238g;37s;1v
     Whippomorpha Waddell, Okada & Hasegawa 1999 see Suborder Whippomorpha
    Count: [*†*] 14f;39g;22s; ‡1f;1g;1s; †28f;237g;37s;1v
       Cetacea Brisson 1762 see Suborder Cetacea Brisson, 1762
      Count: [*†*] 13f;39g;22s; ‡1f;1g;1s; †28f;236g;37s;1v [16 Jul 2022]
         Pelagiceti Uhen, 2008
        Count: [*†*] 13f;39g;22s; ‡1f;1g;1s; †24f;206g;33s;1v [16 Jul 2022]
           Neoceti Fordyce & de Muizon, 2001
          Count: [*†*] 13f;39g;22s; ‡1f;1g;1s; †22f;191g;32s;1v [16 Jul 2022]
             Mysticeti Cope, 1891 see Parvorder Mysticeti Cope, 1891
            Count: [*†*] 4f;6g;7s; †7f;54g;10s;1v [10 Jul 2022]
               Family †Aetiocetidae Emlong, 1966
              Count: [†*] †6g;1s [7 Jul 2022]
                 1 Genus †Aetiocetus Emlong, 1966
                Count: [†*] †1s
                 2 Genus †Ashorocetus Barnes & Kimura, 1994
                Count: -
                 3 Genus †Chonecetus Russell, 1968
                Count: -
                 4 Genus †Fucaia Marx et al., 2015
                Count: -
                 5 Genus †Morawanocetus Kimura & Barnes, 1994
                Count: -
                 6 Genus †Willungacetus Pledge, 2005
                Count: -