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
Superfamily †Pediomyoidea Simpson, 1927
Family †Pediomyidae Simpson, 1927
Genus †Khasia Marshall & de Muizon, 1988