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Scientific classification
Kingdom Information
Domain Eukaryota
Kingdom Animalia
Subkingdom Biliteria
Branch Deuterostomia
Phylum Information
Phylum Chordata
Sub-phylum Vertebrata
Infraphylum Gnathostomata
Class Information
Class Chondrichthyes
Sub-class Elasmobranchii
Order Information
Superorder Selachimorpha
Order Hexanchiformes
Family Information
Families Chlamydoselachidae
Population statistics

Hexanchiformes is an order of sharks representing two families and five species of deep-water shark, identifiable by the presence of six or seven gill slits (cow sharks), or of a shape reminiscent of an eel (frilled sharks).