Class Mammalia Linnaeus, 1758 - mammals Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818 Family Burramyidae Broom, 1898 - pygmy possums Genus Cercartetus Gloger, 1841 - "dormouse" possums 1 Cercartetus concinnus (Gould, 1845) - western pygmy possum 2 Cercartetus nanus (Desmarest, 1818) - eastern pygmy possum 3 Cercartetus lepidus (Thomas, 1888) - little pygmy possum 4 Cercartetus caudatus (Milne-Edwards, 1877) - long-tailed pygmy possum