Definition of Metatheria in English:

Metatheria

plural noun ˌmɛtəˈθɪərɪəˌmedəˈTHirēə

Zoology

A group of mammals that comprises the marsupials.
〔动〕后兽亚纲，后兽下纲。比较EUTHERIA
Infraclass Metatheria, subclass Theria
Compare with Eutheria
Example sentencesExamples
- 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).
- Yet the teeth of deltatheroidans are of remarkably primitive construction; if they are related to marsupials, an extremely early divergence of Metatheria and Eutheria is implied.
- In all cases, a representative of the mammalian infraclass Metatheria was designated as an outgroup.

Origin

Modern Latin (plural), from meta- (expressing change) + Greek thēria, plural of thērion 'wild animal'.

Definition of Metatheria in US English:

Metatheria

plural nounˌmedəˈTHirēə

Zoology

A group of mammals that comprises the marsupials.
〔动〕后兽亚纲，后兽下纲。比较EUTHERIA
Infraclass Metatheria, subclass Theria
Compare with Eutheria
Example sentencesExamples
- In all cases, a representative of the mammalian infraclass Metatheria was designated as an outgroup.
- 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).
- Yet the teeth of deltatheroidans are of remarkably primitive construction; if they are related to marsupials, an extremely early divergence of Metatheria and Eutheria is implied.
- These evolutionary ties between the South American Microbiotheriidae and the Australian marsupials help to illuminate the biogeographic history of the Metatheria.

Origin

Modern Latin (plural), from meta- (expressing change) + Greek thēria, plural of thērion ‘wild animal’.

单词	Metatheria
释义	Definition of Metatheria in English: Metatheria plural noun ˌmɛtəˈθɪərɪəˌmedəˈTHirēə Zoology A group of mammals that comprises the marsupials. 〔动〕后兽亚纲，后兽下纲。比较EUTHERIA Infraclass Metatheria, subclass Theria Compare with Eutheria Example sentencesExamples 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). Yet the teeth of deltatheroidans are of remarkably primitive construction; if they are related to marsupials, an extremely early divergence of Metatheria and Eutheria is implied. In all cases, a representative of the mammalian infraclass Metatheria was designated as an outgroup. Origin Modern Latin (plural), from meta- (expressing change) + Greek thēria, plural of thērion 'wild animal'. Definition of Metatheria in US English: Metatheria plural nounˌmedəˈTHirēə Zoology A group of mammals that comprises the marsupials. 〔动〕后兽亚纲，后兽下纲。比较EUTHERIA Infraclass Metatheria, subclass Theria Compare with Eutheria Example sentencesExamples In all cases, a representative of the mammalian infraclass Metatheria was designated as an outgroup. 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). Yet the teeth of deltatheroidans are of remarkably primitive construction; if they are related to marsupials, an extremely early divergence of Metatheria and Eutheria is implied. These evolutionary ties between the South American Microbiotheriidae and the Australian marsupials help to illuminate the biogeographic history of the Metatheria. Origin Modern Latin (plural), from meta- (expressing change) + Greek thēria, plural of thērion ‘wild animal’.
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