Order Polyprotodontia (Owen, 1866) Suborder Didelphimorphia Gill, 1872 see Order Didelphimorphia Gill, 1872 Superfamily Didelphoidea Gray, 1821 Family Didelphidae Gray, 1821 - American opossums Subfamily Caluromyinae Kirsch & Reig, 1977 Genus Caluromysiops Sanborn, 1951 - black-shouldered opossum