Sauria vs Lacertilia

Sauria and Lacertilia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sauria	Yes	No	No	No
Lacertilia	Yes	No	No	No

As nouns, Sauria and Lacertilia are synonyms defined as:

Other synonyms of Sauria include suborder Lacertilia, suborder Sauria.

Sauria (noun)	Lacertilia (noun)
true lizards; including chameleons and geckos	true lizards; including chameleons and geckos