Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Dasyuromorphia Gill, 1872 Family Dasyuridae Goldfuss, 1820 - marsupial "mice" and "cats", and Tasmanian devil Subfamily Sminthopsinae Archer, 1982 Tribe Sminthopsini Archer, 1982 Genus Sminthopsis Thomas, 1887 - narrow-footed marsupial "mice" Sminthopsis longicaudata group Spencer, 1909