Pteraspidomorpha - Protaspidae
Full reference: W. L. Bryant. 1933. The Fish Fauna of Beartooth Butte, Wyoming. Proceedings of the American Philosophical Society 72(5):285-314
Parent taxon: Heterostraci according to W. L. Bryant 1933
Sister taxa: Amphiaspidiformes, Aporemaspis, Ariaspididae, Cardipeltida, Cardipeltidae, Cardipeltiformes, Ceraspidae, Corvaspidida, Corvaspidiformes, Cyathaspida, Cyathaspididae, Cyathaspidiformes, Drepanaspidae, Lepidaspidida, Lepidaspidiformes, Olbiaspidida, Palaeaspidi, Psammolepis, Psammosteiformes, Pteraspidi, Pteraspidiformes, Strosipherus, Tesseraspidida, Tesseraspidiformes, Thelodontidae, Tolypelepidida, Tolypelepidiformes, Traquairaspidida, Traquairaspidiformes
Subtaxa: none
Ecology:
Distribution: there are no occurrences of Protaspidae in the database