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单词 Eutheria
释义

Definition of Eutheria in English:

Eutheria

plural nounjuːˈθɪərɪəyo͞oˈTHirēə
Zoology
  • A major group of mammals that comprises the placentals.

    Infraclass Eutheria, subclass Theria

    Compare with Metatheria
    Example sentencesExamples
    • Phylogenetic analyses of large mitochondrial data sets support an early divergence of the hedgehog lineage from the rest of Eutheria.
    • They either sequenced this fragment or obtained published sequences for a wide variety of mammals, covering almost all traditional orders of the Eutheria.
    • Previous paleontological and molecular evidence has indicated that cetaceans and artiodactyls constitute a natural clade within the subclass Eutheria.
    • On the other hand, molecular data sets tend to support the sister-group relationship of Carnivora and Pholidota, usually with Xenarthra as basal for Eutheria.
    • 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.

Origin

Modern Latin (plural), from eu- 'well, prospering' + Greek thērion 'wild beast'.

 
 

Definition of Eutheria in US English:

Eutheria

plural nounyo͞oˈTHirēə
Zoology
  • A major group of mammals that comprises the placentals.

    Infraclass Eutheria, subclass Theria

    Compare with Metatheria
    Example sentencesExamples
    • Phylogenetic analyses of large mitochondrial data sets support an early divergence of the hedgehog lineage from the rest of Eutheria.
    • They either sequenced this fragment or obtained published sequences for a wide variety of mammals, covering almost all traditional orders of the Eutheria.
    • Previous paleontological and molecular evidence has indicated that cetaceans and artiodactyls constitute a natural clade within the subclass Eutheria.
    • 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.
    • On the other hand, molecular data sets tend to support the sister-group relationship of Carnivora and Pholidota, usually with Xenarthra as basal for Eutheria.

Origin

Modern Latin (plural), from eu- ‘well, prospering’ + Greek thērion ‘wild beast’.

 
 
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更新时间:2025/3/1 9:10:40