Class Mammalia Linnaeus, 1758 - mammals Order Diprotodontia Owen, 1866 Family Potoroidae Gray, 1821 - rat-kangaroos Genus ‡Caloprymnus Thomas, 1888 - desert "rat"-kangaroo 1 ‡Caloprymnus campestris (Gould, 1843) - desert "rat"-kangaroo