Chondrichthyes - Sclerorhynchiformes - Sclerorhynchidae

Parent taxon: Sclerorhynchidae according to M. E. Suarez and H. Cappetta 2004

Sister taxa: Ankistrorhynchus, Baharipristis, Biropristis, Borodinopristis, Celtipristis, Ctenopristis, Ganopristis, Ischyrhiza, Libanopristis, Marckgrafia, Micropristis, Onchosaurus, Plicatopristis, Pucapristis, Renpetia, Schizorhiza, Schizorhizinae

Subtaxa: Kiestus texana

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Type: Ischyrhiza texana

Ecology: nektonic carnivore