Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Diprotodontia Owen, 1866
       Suborder Phalangeriformes Szalay, 1982
         Superfamily Phalangeroidea Thomas, 1888 see Suborder Phalangeriformes Szalay, 1982
           Family Burramyidae Broom, 1898 - pygmy possums
             1 Genus Burramys Broom, 1896 - mountain pygmy possum
             2 Genus Cercartetus Gloger, 1841 - "dormouse" possums