eutherian

American  

[yoo-theer-ee-uhn] / yuˈθɪər i ən /

adjective

1. belonging or pertaining to the group Eutheria, comprising the placental mammals.

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noun

1. a eutherian animal.

eutherian British  

/ juːˈθɪərɪən /

adjective

1. of, relating to, or belonging to the Eutheria, a subclass of mammals all of which have a placenta and reach an advanced state of development before birth. The group includes all mammals except monotremes and marsupials

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noun

1. any eutherian mammal

Etymology

Origin of eutherian

1875–80; < New Latin Eutheri ( a ) (< Greek eu- eu- + thēría, plural of thēríon wild beast) + -an

Example Sentences

Some of the archaic species, such as taeniodonts, might have stemmed from Cretaceous eutherian ancestors and thus would be among the most primitive placentals on the trunk of the family tree.

From Scientific American • May 17, 2022

It, or perhaps another closely related eutherian, was our ancestor.

From Scientific American • May 17, 2022

Figure 1: Phylogeny and constrained elements from the 29 eutherian mammalian genome sequences. a, A phylogenetic tree of all 29 mammals used in this analysis based on the substitution rates in the MultiZ alignments.

From Nature • Oct. 26, 2011

Many eutherian elements are thus probably missing from previous maps of vertebrate constraint.

From Nature • Oct. 26, 2011

Paleontologist John Hunter of Ohio State University, Newark, agrees that Juramaia adds resolution to the emergence of our eutherian forebears.

From Science Magazine • Aug. 24, 2011