Graselfasker
Graselfasker (Chondrichthyes) haa uun't jindial tu Bianfasker wok bian.

Süstemaatik 
 Elasmobranchii

 Heifasker (Selachii, Selachimorpha)
 1. (Galeomorphi)
 (Heterodontiformes)
 (Orectolobiformes)
 (Lamniformes)
 (Carcharhiniformes)
 2. (Squalomorphi)
 (Hexanchiformes)
 (Echinorhiniformes)
 (Squaliformes)
 (Squatiniformes)
 (Pristiophoriformes)

 Rochen (Batoidea, Batomorphii, Rajomorphii)
 (Torpediniformes)
 (Pristiformes)
 Rajiformes
 (Rhinopristiformes)
 (Myliobatiformes)

 Holocephali
 Siakaater (Holocephalimorpha)
 Draagfasker (Chimaeriformes)
 Paraselachimorpha (†)

Ferwisang efter bütjen 

Fasker