Hexanchidae

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Superordo: Selachimorpha
Ordo: Hexanchiformes
Familia: Hexanchidae
Genera: Heptranchias - Hexanchus - Notorynchus - †Notidanoides - †Notidanodon - †Paraheptranchias - †Pseudonotidanus - †Weltonia

Vernacular names
Internationalization
Deutsch: Sechskiemerhaie
English: Cow sharks
Nederlands: Koehaaien
Português: Tubarão de vaca
Русский: Cow shark