†Ewingia Case and Cappetta 1997 (cartilaginous fish)
Full reference: G. R. Case and H. Cappetta. 1997. A new Selachian Fauna from the Late Maastrichtian of Texas (Upper Cretaceous/Navarroan; Kemp Formation) . Münchner Geowiss. Abh. (A)(34):131-189
Parent taxon: Chondrichthyes according to G. R. Case and H. Cappetta 1997
Sister taxa: Ancistriodus, Areyonga, Bradyodonti, Bradyodontida, Desmiodontida, Elasmobranchii, Elegestolepis, Eucentrurus, Euchondrocephali, Geisacanthus, Hamatus, Holocephalimorpha, Iniopterygia, Leonotus, Listracanthus, Machichnus, Mongolepididae, Ptomacanthus, Pucapumpella, Rhinobatiformes, Selachii, Simmorius, Subterbranchialia, Thaumatacanthus, Xystracanthus
Subtaxa: none
Ecology: nektonic carnivore