Class Mammalia Linnaeus, 1758 - mammals Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818 Family Macropodidae Gray, 1821 - wallabies and kangaroos Genus ‡Caloprymnus Thomas, 1888 - desert "rat"-kangaroo 1 ‡Caloprymnus campestris (Gould, 1843) - desert "rat"-kangaroo