Class Mammalia Linnaeus, 1758 - mammals
   Order Diprotodontia Owen, 1866
     Family Phalangeridae Thomas, 1888 - possums and cuscuses
       Genus Trichosurus Lesson, 1828 - brush-tailed possums
         1 Trichosurus arnhemensis Collett, 1897 - northern brushtail possum
         2 Trichosurus caninus (Ogilby, 1835[1836]) - mountain brushtail possum
         3 Trichosurus vulpecula (Kerr, in Linnaeus, 1792) - common brushtail possum