†Hamatus Branson 1930 (cartilaginous fish)
Parent taxon: Chondrichthyes according to C. C. Branson 1933
Sister taxa: Ancistriodus, Areyonga, Bradyodonti, Bradyodontida, Desmiodontida, Elasmobranchii, Elegestolepis, Eucentrurus, Euchondrocephali, Ewingia, Geisacanthus, Holocephalimorpha, Iniopterygia, Leonotus, Listracanthus, Machichnus, Mongolepididae, Ptomacanthus, Pucapumpella, Rhinobatiformes, Selachii, Simmorius, Subterbranchialia, Thaumatacanthus, Xystracanthus
Subtaxa: Hamatus phosphoriensis
Ecology: nektonic carnivore