Class [Mammalia] Linnaeus, 1758 - mammals
   Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818
     Family Didelphidae Gray, 1821 - American opossums
       Genus Didelphis Linnaeus, 1758 - large American opossums
         1 Didelphis albiventris Lund, 1840 - white-eared opossum
         1.1 Didelphis azarae Temminck, 1824 sensu Tschudi, 1845:143 see Didelphis albiventris Lund, 1840
         2 Didelphis marsupialis Linnaeus, 1758 - common opossum
         2.1 Didelphis azarae Temminck, 1824 see Didelphis aurita (Wied-Neuwied, 1826)
         3 Didelphis virginiana Kerr, 1792 - Virginia opossum