Perciformes vs Acanthopterygii

Perciformes and Acanthopterygii both are nouns.

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

Perciformes (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