Chondrichthyes - Hexanchiformes

Parent taxon: Hexanchiformes according to C. J. Underwood and D. J. Ward 2004

Sister taxa: Chlamydoselachidae, Eonotidanus, Hexanchidae, Pachyhexanchus, Paraheptranchias, Pseudonotidanidae, Thrinax, Welcommia, Weltonia

Subtaxa: none

Ecology: nektonic carnivore