Metatheria
/ˌmɛtəˈθɪərɪə
/plural noun Zoology
A group of mammals that comprises the marsupials. Compare with Eutheria.
- Infraclass Metatheria, subclass Theria.
- These evolutionary ties between the South American Microbiotheriidae and the Australian marsupials help to illuminate the biogeographic history of the Metatheria.
- The data presented here encompassed 5 Metatheria (order Didelphimorphia) and 62 Eutheria: 15 Xenarthra, 24 Euarchontoglires, as well as 23 Laurasiatheria (22 Chiroptera and 1 species from Perissodactyla).
Origin
Modern Latin (plural), from meta- (expressing change) + Greek thēria, plural of thērion 'wild animal'.
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