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Marsupialia
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Definition
: An infraclass of MAMMALS, also called Metatheria, where the young are born at an early stage of development and continue to develop in a pouch (marsupium). In contrast to Eutheria (placentals), marsupials have an incomplete PLACENTA.
Examples
Macropodidae
;
Opossums
;
Phalangeridae
;
Phascolarctidae
;
Potoroidae
Other names
Metatheria; Marsupial; Marsupials