Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
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]
             Odontoceti Flower, 1867 see Parvorder Odontoceti Flower, 1867
            Count: [*†*] 9f;33g;15s; ‡1f;1g;1s; †15f;137g;22s
               Family †Ashleycetidae Sanders & Geisler, 2015 [monotypic]
              Count: [†*] †1g;1s [10 Jul 2022]
                 Genus †Ashleycetus Sanders & Geisler, 2015 [monotypic]
                Count: [†*] †1s [10 Jul 2022]
                   1 †Ashleycetus planicapitis Sanders & Geisler, 2015
                  Count: -