Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Clade Mammalia Linnaeus 1758 [Rowe 2020]
   Metatheria Huxley 1880 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Infraclass Metatheria Huxley, 1880
     Marsupialiformes Vullo, Gheerbrant, de Muizon & Néraudeau, 2009
       Notometatheria Kirsch, Lapointe & Springer 1997
         Marsupialia Jameson 1818 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Cohort Marsupialia Jameson, 1818
           Australidelphia Szalay 1982 see Magnorder Australidelphia Szalay, 1982
             [Order] Diprotodontia Owen, 1866
               1 Genus Cercartetus Gloger, 1841 - "dormouse" possums
               2.1 Genus Petaurus Shaw, 1791 - lesser gliding possums
               2.2.1 Genus Macropus Shaw, 1790 - wallabies, wallaroos, and kangaroos
               2.2.2.1 Genus Vombatus Geoffroy Saint-Hilaire, 1803 - common wombat
               2.2.2.2 Genus Phascolarctos Blainville, 1816 - koala