Australidelphia is the superorder that contains roughly three-quarters of all marsupials, including all those native to Australasia and a single species from South America. (All other American marsupials are members of the Ameridelphia.) The orders within this group are listed below: Order Microbiotheria (1 species) Family Microbiotheriidae: Monito del Monte Order Dasyuromorphia (71 species) Family †Thylacinidae: Thylacine Family Dasyuridae: antechinuses, quolls, dunnarts, Tasmanian Devi… (More on Australidelphia)