| 释义 |
Marsupialia /mɑːˌs(j)uːpɪˈeɪlɪə/Zoology nounTreated as plural. An order of mammals comprising forms which lack a complete placenta and give birth to very immature young which complete their development while attached to the mother's mammae, typically located in a protective abdominal pouch.- The order is often placed as the sole extant group in the infraclass Metatheria, and includes kangaroos, opossums, and a range of variously adapted species which are mainly restricted to Australia and New Guinea. By some recent authors, each of the main marsupial groups is treated as equivalent to an order, Marsupialia being termed a cohort..
Origin Mid 19th century; earliest use found in Henry McMurtrie (1793–1865). From scientific Latin Marsupialia from post-classical Latin marsupialis + -a. |