Genus:
Chelydra >
Family:
Chelydridae >
Superfamily:
Chelydroidea >
Suborder:
Cryptodira >
Class:
Testudines >
Superclass:
Amniota >
Megaclass:
Tetrapoda >
Gigaclass:
Sarcopterygii >
Parvphylum:
Osteichthyes >
Infraphylum:
Gnathostomata >
Subphylum:
Vertebrata >
Phylum:
Chordata >
Kingdom:
Animalia >
Unranked:
Biota >