[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Deuterostomia Grobben, 1908 see Infrakingdom Deuterostomia Grobben, 1908
           Phylum Chordata Bateson, 1885 - chordates
             Subphylum Vertebrata Cuvier, 1812 - vertebrates
               Superclass Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
                 Class Mammalia Linnaeus, 1758 - mammals
                   Subclass Theria Parker & Haswell, 1897
                     Infraclass Metatheria Huxley, 1880
                       Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818
                         Family Phascolomyidae Goldfuss, 1820 see Family Vombatidae Burnett, 1830
                         1 Family Didelphidae Gray, 1821 - American opossums
                         2 Family Dasyuridae Goldfuss, 1820 - marsupial "mice" and "cats", and Tasmanian devil
                         3 Family Notoryctidae Ogilby, 1892
                         4 Family Peramelidae Gray, 1825 - bandicoots
                         5 Family Caenolestidae Trouessart, 1898 - "shrew" opossums
                         6 Family Phalangeridae Thomas, 1888 - possums and cuscuses
                         8 Family Macropodidae Gray, 1821 - wallabies and kangaroos