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
                       Genus Pseudocheirus Ogilby, 1837 - ring-tailed possums
                         1 Subgenus Pseudocheirus (Ogilby, 1837) see Genus Pseudocheirus Ogilby, 1837
                         2 Subgenus Pseudocheirops see Subgenus Pseudochirops (Matschie, 1915)
                         3 Subgenus Petropseudes (Thomas, 1923) see Genus Petropseudes Thomas, 1923
                         4 Subgenus Hemibelideus Collett, 1884 see Genus Hemibelideus (Collett, 1884)