Class Mammalia Linnaeus, 1758 - mammals Order Diprotodontia Owen, 1866 Family Petauridae Bonaparte, 1838 - gliding, ring-tailed, and striped possums Genus Gymnobelideus McCoy, 1867 - Leadbeater's possum 1 Gymnobelideus leadbeateri McCoy, 1867 - Leadbeater's possum