order Testudinata vs order Testudines

order Testudinata and order Testudines both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Testudinata	Yes	No	No	No
order Testudines	Yes	No	No	No

As nouns, order Testudinata and order Testudines are synonyms defined as:

Other synonyms of order Testudinata include Chelonia, order Chelonia, Testudinata, Testudines.

order Testudinata (noun)	order Testudines (noun)
tortoises and turtles	tortoises and turtles