| 释义 |
‖ Metatheria, n. pl. Zool.|mɛtəˈθɪərɪə|
[mod.L., f. Gr. µετα- meta- + θηρίον animal.]
Huxley's term (correlative with Prototheria and Eutheria) for the Marsupials. Hence metaˈtherian a., belonging to the Metatheria; n., an animal of this division.
1880Huxley in Proc. Zool. Soc. 654 An intermediate type between that of the Prototheria and that of the higher mammals, which may be termed that of the Metatheria. Ibid. 657 There is no known..Marsupial which has not far more widely departed from the Metatherian type. 1894–5Roy. Nat. Hist. (ed. Lydekker) III. 283 Mammals are divided into three primary groups or subclasses, viz.: 1. Eutherians, or Placentals... 2. Metatherians, or Implacentals, including the Pouched Mammals. 3. Prototherians, represented only by the Egg-laying Mammals. |