Plectognathi vs animal order

Plectognathi and animal order both are nouns.

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

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

Plectognathi: boxfishes, filefishes, globefishes, ocean sunfishes, triggerfishes, puffers
animal order: the order of animals

Plectognathi (noun)	animal order (noun)
boxfishes, filefishes, globefishes, ocean sunfishes, triggerfishes, puffers	the order of animals