Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Metatheria Huxley, 1880 see Infraclass Metatheria Huxley, 1880
                 Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818
                   Family Phalangeridae Thomas, 1888 - possums and cuscuses
                     Subfamily Phascolarctinae see Family Phascolarctidae Owen, 1839
                       1 Genus Pseudocheirus Ogilby, 1837 - ring-tailed possums
                       2 Genus Schoinobates Iredale & Troughton, 1934, nom. illeg. see Genus Petauroides Thomas, 1888
                       3 Genus Phascolarctos Blainville, 1816 - koala