subphylum Craniata vs subphylum Vertebrata

subphylum Craniata and subphylum Vertebrata both are nouns.

Word	Noun	Adjective	Verb	Adverb
subphylum Craniata	Yes	No	No	No
subphylum Vertebrata	Yes	No	No	No

As nouns, subphylum Craniata and subphylum Vertebrata are synonyms defined as:

subphylum Craniata and subphylum Vertebrata: fishes, amphibians, reptiles, birds, mammals

Other synonyms of subphylum Craniata include Craniata, Vertebrata.

subphylum Craniata (noun)	subphylum Vertebrata (noun)
fishes, amphibians, reptiles, birds, mammals	fishes, amphibians, reptiles, birds, mammals