Mugiloidea vs animal order

Mugiloidea and animal order both are nouns.

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

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

Mugiloidea: fishes distinguished by abdominal pelvic fins: families Mugilidae; Atherinidae; Sphyraenidae
animal order: the order of animals

Mugiloidea (noun)	animal order (noun)
fishes distinguished by abdominal pelvic fins: families Mugilidae; Atherinidae; Sphyraenidae	the order of animals