To which class, defined by having cartilaginous skeletons, do hammerhead sharks belong?
Answer
Chondrichthyes
Hammerhead sharks belong to the Class Chondrichthyes, which encompasses all cartilaginous fishes, separating them from bony fishes.

Related Questions
What is the scientific term for the hammer-shaped extension of a hammerhead shark's head?To which class, defined by having cartilaginous skeletons, do hammerhead sharks belong?The family name Sphrynidae is derived from which word and meaning?Which two genera currently divide the family Sphrynidae?Which specific species is the sole representative of the genus *Eusphyra*?According to the generally accepted count, approximately how many known species of hammerhead sharks exist within the family Sphrynidae?What is the current IUCN conservation status listed for the Great Hammerhead (*Sphyrna mokarran*)?Which description characterizes the cephalofoil margin of the Bonnethead Shark (*S. tiburo*)?What significant behavioral difference helps distinguish the Scalloped Hammerhead (*S. lewini*) from the Great Hammerhead (*S. mokarran*)?Why is the precise classification of a hammerhead shark significant in terms of management?