suborder Sauria vs animal order

suborder Sauria and animal order both are nouns.

Word	Noun	Adjective	Verb	Adverb
suborder Sauria	Yes	No	No	No
animal order	Yes	No	No	No

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

suborder Sauria (noun)	animal order (noun)
true lizards; including chameleons and geckos	the order of animals