Holocephali

== Translingual == === Etymology === New Latin, nominative plural of formation from Ancient Greek ὅλος (hólos, “whole”) + κεφαλή (kephalḗ, “head”). === Proper noun === Holocephali A taxonomic subclass within the class Chondrichthyes – ghost sharks or chimaeras. ==== Hyponyms ==== (subclass): Chimaeriformes – sole extant order === Further reading === Holocephali on Wikipedia.Wikipedia Holocephali on Wikispecies.Wikispecies Category:Holocephali on Wikimedia Commons.Wikimedia Commons Holocephali at World Register of Marine Species Holocephali at Integrated Taxonomic Information System. Holocephali at National Center for Biotechnology Information “Holocephali”, in Paleobiology Database, 2026