Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Diprotodontia Owen, 1866
       Suborder Phalangeriformes Szalay, 1982
         Superfamily Petauroidea Bonaparte, 1838
           Family Petauridae Bonaparte, 1838 - gliding, ring-tailed, and striped possums
             Genus Petaurus Shaw, 1791 - lesser gliding possums
               Petaurus breviceps Waterhouse, 1838[1839] - sugar glider
                 Petaurus breviceps longicaudatus Longman, 1924