order Caudata vs animal order

order Caudata and animal order both are nouns.

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

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

order Caudata (noun)	animal order (noun)
salamanders, newts, congo snakes	the order of animals