Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
   Metatheria Huxley 1880 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Infraclass Metatheria Huxley, 1880
     Marsupialiformes Vullo, Gheerbrant, de Muizon & Néraudeau, 2009
       Order †Archimetatheria Szalay, 1994
         Family †Stagodontidae Marsh, 1889
           1 Genus †Fumodelphodon Cohen, 2017
           2 Genus †Hoodootherium Cohen, 2017
           3.1 Genus †Eodelphis Matthew, 1916
           3.2.1 Genus †Eobrasilia Simpson, 1947
           3.2.2 Genus †Didelphodon Marsh, 1889