Blennioidea vs animal order

Blennioidea and animal order both are nouns.

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

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

Blennioidea (noun)	animal order (noun)
blennies, butterfishes, gunnels	the order of animals