eutherian mammal vs eutherian

eutherian mammal and eutherian both are nouns.

Word	Noun	Adjective	Verb	Adverb
eutherian mammal	Yes	No	No	No
eutherian	Yes	Yes	No	No

As nouns, eutherian mammal and eutherian are synonyms defined as:

eutherian mammal and eutherian: mammals having a placenta; all mammals except monotremes and marsupials

Other synonyms of eutherian mammal include placental, placental mammal.

eutherian mammal (noun)	eutherian (noun)
mammals having a placenta; all mammals except monotremes and marsupials	mammals having a placenta; all mammals except monotremes and marsupials

eutherian mammal (adjective)	eutherian (adjective)
	of or relating to or belonging to the subclass Eutheria