order Chelonia vs animal order

order Chelonia and animal order both are nouns.

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

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

order Chelonia (noun)	animal order (noun)
tortoises and turtles	the order of animals