Heifasker
Heifasker (Selachii of Selachimorpha) san Fasker uun det klas faan a Graselfasker (Chondrichthyes). Diar jaft at wel son 500 slacher faan.

A miast Heifasker freed ööder fasker; enkelten üs di Waalhei freed oober man plankton.

Ordern 
(efter Wikispecies):

Carcharhiniformes - †Cladoselachiformes - †Ctenacanthiformes - †Eugeneodontida - Heterodontiformes - Hexanchiformes - Lamniformes - Orectolobiformes - Pristiophoriformes - Squaliformes - Squatiniformes - †Symmoriida - †Synechodontiformes - †Xenacanthida

Iindialang tu ordern mä enkelt slacher 
(efter: Nelson, 2006):

 1. Galeomorphii, "Echt Heifasker"
 (Carcharhiniformes)
 Kaatheier (Scyliorhinidae)
 Plaket Kaatheier (Scyliorhinus)
 Gratplaket Kaathei (Scyliorhinus stellaris)
 (Heterodontiformes)
 (Heterodontidae)
 (Heterodontus)
 Hurnhai (Heterodontus francisci)
 (Lamniformes)
 Lamnidae
 Witj Heier (Carcharodon)
 Witj Hei (Carcharodon carcharias)
 (Orectolobiformes)
 Waalheier (Rhincodontidae)
 Waalheier (Rhincodon)
 Waalhei (Rhincodon typus)

 2. Squalomorphii, ööder Heifasker
 (Echinorhiniformes)
 (Hexanchiformes)
 (Pristiophoriformes)
 (Squaliformes)
 (Squatiniformes)

Luke uk diar

Literatuur 
 Joseph S. Nelson: Fishes of the World. John Wiley & Sons, 2006. 

 
Graselfasker