†subclass Euchondrocephali Lund and Grogan 1997 (cartilaginous fish)
Parent taxon: Chondrichthyes according to M. Ginter et al. 2010
Sister taxa: Ancistriodus, Areyonga, Bradyodonti, Bradyodontida, Desmiodontida, Elasmobranchii, Elegestolepis, Eucentrurus, Ewingia, Geisacanthus, Hamatus, Holocephalimorpha, Iniopterygia, Leonotus, Listracanthus, Machichnus, Mongolepididae, Ptomacanthus, Pucapumpella, Rhinobatiformes, Selachii, Simmorius, Subterbranchialia, Thaumatacanthus, Xystracanthus
Subtaxa: Ageleodus, Brachyrhizodus, Cynopodius, Debeerius, Desmiodus, Eugeneodontiformes, Euglossodus, Gregoriidae, Heteropetalus, Mesolophodus, Metaxyacanthus, Orodontiformes, Paraselachii, Petalodontiformes
Ecology: nektonic carnivore