Phylum Chordata (Subphylum Vertebrata Clades)

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Phylum Chordata (Subphylum Vertebrata Clades)

Class Dipnoi (lungfishes)

Class Testudines (turtles, tortoises)

Class Chondrichthyes (sharks, rays, skates, chimeras)

Class Mammalia

Class Petromyzontida (lamprey)

Class Crocodilia

Class Myxinoidea (hagfishes)

Class Aves

Class Actinopterygii (rayfinned fishes)

Class Actinista (coelocanths)

Class Lepidosauromorpha (snakes, lizards)

Class Amphibia (frogs, toads, salamanders)