Percomorphi vs Acanthopterygii

Percomorphi and Acanthopterygii both are nouns.

Word	Noun	Adjective	Verb	Adverb
Percomorphi	Yes	No	No	No
Acanthopterygii	Yes	No	No	No

Percomorphi (noun)	Acanthopterygii (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	teleost fishes having fins with sharp bony rays