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
             Genus Cercartetus Gloger, 1841 - "dormouse" possums
               1 Cercartetus caudatus (Milne-Edwards, 1877) - long-tailed pygmy possum
               2 Cercartetus concinnus (Gould, 1845) - western pygmy possum
               3 Cercartetus lepidus (Thomas, 1888) - little pygmy possum
               4 Cercartetus nanus (Desmarest, 1818) - eastern pygmy possum