Class Mammalia Linnaeus, 1758 - mammals Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818 Family Macropodidae Gray, 1821 - wallabies and kangaroos Genus Dorcopsis Schlegel & Müller, 1845 - New Guinean forest wallabies Dorcopsis vanheurni Thomas, 1922 - lesser forest wallaby see Dorcopsulus vanheurni (Thomas, 1922)