genus Phalanger vs mammal genus

genus Phalanger and mammal genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Phalanger	Yes	No	No	No
mammal genus	Yes	No	No	No

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

genus Phalanger (noun)	mammal genus (noun)
type genus of the family Phalangeridae: cuscuses	a genus of mammals