Fissipedia vs eutherian

Fissipedia and eutherian both are nouns.

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

As nouns, eutherian is a hypernym of Fissipedia; that is, eutherian is a word with a broader meaning than Fissipedia:

Fissipedia: in some classifications considered a suborder of Carnivora
eutherian: mammals having a placenta; all mammals except monotremes and marsupials

Other hypernyms of Fissipedia include eutherian mammal, placental, placental mammal.

Fissipedia (noun)	eutherian (noun)
in some classifications considered a suborder of Carnivora	mammals having a placenta; all mammals except monotremes and marsupials

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