living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Theria Parker & Haswell, 1897
                 Infraclass Metatheria Huxley, 1880
                   Superorder Marsupialia Jameson, 1818 see Cohort Marsupialia Jameson, 1818
                     Order Diprotodontia Owen, 1866
                       Family Burramyidae Broom, 1898 - pygmy possums
                         1 Genus Acrobates Desmarest, 1817 - pygmy gliding possum
                         2 Genus Distoechurus Peters, 1874 - feather-tailed possum
                         3 Genus Cercartetus Gloger, 1841 - "dormouse" possums
                         4 Genus Burramys Broom, 1896 - mountain pygmy possum