Unguiculata vs eutherian mammal

Unguiculata and eutherian mammal both are nouns.

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

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

Unguiculata: in former classifications a major division of Mammalia comprising mammals with nails or claws; distinguished from hoofed mammals and cetaceans
eutherian mammal: mammals having a placenta; all mammals except monotremes and marsupials

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

Unguiculata (noun)	eutherian mammal (noun)
in former classifications a major division of Mammalia comprising mammals with nails or claws; distinguished from hoofed mammals and cetaceans	mammals having a placenta; all mammals except monotremes and marsupials