Neoceratodus vs fish genus

Neoceratodus and fish genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Neoceratodus	Yes	No	No	No
fish genus	Yes	No	No	No

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

Neoceratodus (noun)	fish genus (noun)
extant Australian lungfishes	any of various genus of fish