Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Craniata Linnaeus, 1758 see Subphylum Craniata auct.
     Class Mammalia Linnaeus, 1758 - mammals
       Subclass Theria Parker & Haswell, 1897
         Infraclass Marsupialia Jameson, 1818 see Cohort Marsupialia Jameson, 1818
           Order Diprotodontia Owen, 1866
             Suborder Phalangeriformes Szalay, 1982
               Superfamily Petauroidea Bonaparte, 1838
                 Family Pseudocheiridae Winge, 1893