Marsupialia

prop. n. p

1.

(Zool.) A subclass of Mammalia, including nearly all the mammals of Australia and the adjacent islands, together with the opossums of America. They differ from ordinary mammals in having the corpus callosum very small, in being implacental, and in having their young born while very immature. The female generally carries the young for some time after birth in an external pouch, or marsupium. Called also Marsupiata.

Noun

1.

Marsupialia - coextensive with the subclass Metatheria Synonyms: order Marsupialia

animal order, Caenolestidae, Dasyuridae, Didelphidae, family Caenolestidae, family Dasyuridae, family Dasyurinae, family Didelphidae, family Macropodidae, family Notoryctidae, family Peramelidae, family Phalangeridae, family Vombatidae, Macropodidae, marsupial, Metatheria, Notoryctidae, order Marsupialia, Peramelidae, Phalangeridae, pouched mammal, subclass Metatheria, Vombatidae