Mammalia Linnaeus 1758 [Rowe 2020]
Count: [*†*] 4o;1f;14g; †3o;5f;41g;1s
   Theria Parker & Haswell 1897 [McKenna 1975] see Subclass Theria Parker & Haswell, 1897
  Count: [*†*] 4o;1f;14g; †3o;5f;40g;1s
     Metatheria Huxley 1880 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Infraclass Metatheria Huxley, 1880
    Count: [*†*] 4o;1f;14g; †3o;5f;37g;1s
       Marsupialiformes Vullo, Gheerbrant, de Muizon & Néraudeau, 2009
      Count: [*†*] 4o;1f;14g; †3o;5f;34g;1s
         Genus †Asiatherium Trofimov & Szalay, 1994
        Count: -