genus Pecari vs mammal genus

genus Pecari and mammal genus both are nouns.

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

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

genus Pecari (noun)	mammal genus (noun)
type genus of the Tayassuidae	a genus of mammals