Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Diprotodontia Owen, 1866
       Suborder Phalangeriformes Szalay, 1982
         Superfamily Petauroidea Bonaparte, 1838
           Family Pseudocheiridae Winge, 1893
             Subfamily Pseudocheirinae Winge, 1893
               Genus Pseudochirulus Matschie, 1915
                 Pseudochirulus caroli (Thomas, 1921)
                   Pseudochirulus caroli versteegi (Thomas, 1922)