Eutherian.

Brit.

/juːˈθɪərɪə/, U.S.

/juˈθɪriə/

Forms: also with lower-case initial.

Origin: A borrowing from Latin. Etymon: Latin Eutheria.

Etymology: < scientific Latin Eutheria, subclass name (T. Gill 1872, in Smithsonian Misc. Coll. 11 i. p. vi) < eu- eu- comb. form + ancient Greek θηρία , plural of θηρίον wild beast (see therian adj.). Compare Prototheria n.

Zoology and Palaeontology.

With singular agreement: an infraclass of mammals comprising those in which the females develop a placenta (as distinguished from marsupials and monotremes). With plural agreement: mammals of this infraclass collectively; eutherians. Cf. Placentalia n.

ΘΚΠ

the world > animals > mammals > group Placentalia > [noun]

Placentalia1842

Eutheria1881

1881 T. H. Huxley in Nature 6 Jan. 229/1 We have the mammalian type in a higher stage of evolution than that presented by the Prototheria and the Metatheria. Hence we may term forms which have reached this stage the Eutheria.

1894 Jrnl. Anthropol. Inst. 23 259 It is to the arrangement of the different animals of the third sub-class, eutheria, that most people will look with interest.

1913 Times 3 Nov. 6/2 Remains of kangaroo-wombat things are found as far back as the Jurassic period, before any of the higher mammals (Eutheria) had been evolved.

1971 Q. Rev. Biol. 46 226 The Eutheria retained four premolars until at least the Late Cretaceous.

2013 G. Finlay Human Evol. ii. 101 Mammals that are nourished before birth through a placenta connected to their mother's uterus lining constitute the Eutheria.

This is a new entry (OED Third Edition, March 2019; most recently modified version published online March 2022).

单词	eutheria
释义	Eutherian. Brit. /juːˈθɪərɪə/, U.S. /juˈθɪriə/ Forms: also with lower-case initial. Origin: A borrowing from Latin. Etymon: Latin Eutheria. Etymology: < scientific Latin Eutheria, subclass name (T. Gill 1872, in Smithsonian Misc. Coll. 11 i. p. vi) < eu- eu- comb. form + ancient Greek θηρία , plural of θηρίον wild beast (see therian adj.). Compare Prototheria n. Zoology and Palaeontology. With singular agreement: an infraclass of mammals comprising those in which the females develop a placenta (as distinguished from marsupials and monotremes). With plural agreement: mammals of this infraclass collectively; eutherians. Cf. Placentalia n. ΘΚΠ the world > animals > mammals > group Placentalia > [noun] Placentalia1842 Eutheria1881 1881 T. H. Huxley in Nature 6 Jan. 229/1 We have the mammalian type in a higher stage of evolution than that presented by the Prototheria and the Metatheria. Hence we may term forms which have reached this stage the Eutheria. 1894 Jrnl. Anthropol. Inst. 23 259 It is to the arrangement of the different animals of the third sub-class, eutheria, that most people will look with interest. 1913 Times 3 Nov. 6/2 Remains of kangaroo-wombat things are found as far back as the Jurassic period, before any of the higher mammals (Eutheria) had been evolved. 1971 Q. Rev. Biol. 46 226 The Eutheria retained four premolars until at least the Late Cretaceous. 2013 G. Finlay Human Evol. ii. 101 Mammals that are nourished before birth through a placenta connected to their mother's uterus lining constitute the Eutheria. This is a new entry (OED Third Edition, March 2019; most recently modified version published online March 2022). < n.1881
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