Class Mammalia Linnaeus, 1758 - mammals Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818 Family Didelphidae Gray, 1821 - American opossums Genus Glironia Thomas, 1912 - bushy-tailed opossums 1 Glironia venusta Thomas, 1912 - bushy-tailed opossum