Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Didelphimorphia Gill, 1872
       Family Didelphidae Gray, 1821 - American opossums
         Subfamily Didelphinae Gray, 1821
           Genus Lutreolina Thomas, 1910 - thick-tailed opossum
             Lutreolina crassicaudata (Desmarest, 1804) - lutrine opossum
               1 [Lutreolina crassicaudata crassicaudata]ᵀ (Desmarest, 1804)
               2 Lutreolina crassicaudata turneri (Günther, 1879)