Brachyura vs animal order

Brachyura and animal order both are nouns.

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

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

Brachyura: an order of crustaceans (including true crabs) having a reduced abdomen folded against the ventral surface
animal order: the order of animals

Brachyura (noun)	animal order (noun)
an order of crustaceans (including true crabs) having a reduced abdomen folded against the ventral surface	the order of animals