Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Didelphimorphia Gill, 1872
       Family Didelphidae Gray, 1821 - American opossums
         Subfamily Caluromyinae Kirsch & Reig, 1977
           1 Genus Caluromys Allen, 1900 - woolly opossums
           2 Genus Caluromysiops Sanborn, 1951 [monotypic] - black-shouldered opossum
           3 Genus Glironia Thomas, 1912 - bushy-tailed opossums