Class [Mammalia] Linnaeus, 1758 - mammals Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818 Family Potoroidae Gray, 1821 - rat-kangaroos Genus Potorous Desmarest, 1804 - potoroos Potorous tridactylus (Kerr, in Linnaeus, 1792) - long-nosed potoroo