Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammals

cartilaginous fish, chondrichthian - fishes in which the skeleton may be calcified but not ossified

Holocephali, subclass Holocephali - chimaeras and extinct forms

Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachii - sharks; rays; dogfishes; skates

class - (biology) a taxonomic group containing one or more orders