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 Pseudocheirus Ogilby, 1837 - ring-tailed possums
                 Pseudocheirus peregrinus (Boddaert, 1785) - common ringtail possum
                   1 [Pseudocheirus peregrinus peregrinus]ᵀ (Boddaert, 1785)
                   2 Pseudocheirus peregrinus occidentalis (Thomas, 1888) - western ringtail possum
                   3 Pseudocheirus peregrinus pulcher (Matschie, 1915)
                   4 Pseudocheirus peregrinus convolutor Schinz, 1821