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 veterum (Lesson & Garnot, 1826) see Dorcopsis muelleri (Lesson, in Duperry, 1827)