order Caudata vs order Urodella

order Caudata and order Urodella both are nouns.

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

As nouns, order Caudata and order Urodella are synonyms defined as:

Other synonyms of order Caudata include Caudata, Urodella.

order Caudata (noun)	order Urodella (noun)
salamanders, newts, congo snakes	salamanders, newts, congo snakes