Acanthopterygii vs animal order

Acanthopterygii and animal order both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acanthopterygii	Yes	No	No	No
animal order	Yes	No	No	No

As nouns, animal order is a hypernym of Acanthopterygii; that is, animal order is a word with a broader meaning than Acanthopterygii:

Acanthopterygii (noun)	animal order (noun)
teleost fishes having fins with sharp bony rays	the order of animals