Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Order Didelphimorphia Gill, 1872
Family Didelphidae Gray, 1821 - American opossums
Subfamily Didelphinae Gray, 1821
01 Genus Chironectes Illiger, 1811 - yapok
02 Genus Didelphis Linnaeus, 1758 - large American opossums
03 Genus Gracilinanus Gardner & Creighton, 1989
04 Genus Hyladelphys Voss, Lunde & Simmons, 2001 [monotypic]
05 Genus Lestodelphys Tate, 1934 [monotypic] - Patagonian opossum
06 Genus Lutreolina Thomas, 1910 - thick-tailed opossum
07 Genus Marmosa Gray, 1821 - murine opossums
08 Genus Marmosops Matschie, 1916
09 Genus Metachirus Burmeister, 1854 - brown "four-eyed" opossum
10 Genus Micoureus Lesson, 1842
11 Genus Monodelphis Burnett, 1830 - short-tailed opossums
12 Genus Philander Brisson, 1762 - gray and black "four-eyed" opossums
13 Genus Thylamys Gray, 1843
14 Genus Tlacuatzin Voss & Jansa, 2003 [monotypic]