Pteraspidomorpha - Drepanaspidae
Parent taxon: Heterostraci according to D. S. Jordan 1963
Sister taxa: Amphiaspidiformes, Aporemaspis, Ariaspididae, Aserotaspis, Cardipeltida, Cardipeltidae, Cardipeltiformes, Ceraspidae, Corvaspidida, Corvaspidiformes, Cyathaspida, Cyathaspidiformes, Guerichosteidae, Lepidaspidida, Lepidaspidiformes, Munchoaspis, Olbiaspidida, Palaeaspidi, Protaspidae, Psammolepis, Psammosteiformes, Pteraspidi, Pteraspidiformes, Rimasventeraspis, Strosipherus, Tesseraspidida, Tesseraspidiformes, Tolypelepidida, Tolypelepidiformes, Toombsaspis, Traquairaspidida, Traquairaspidiformes, Irregulariaspis, Gunaspis, Archodus, Ennosviaspis, Athenaegis, Dyreaspis, Steinaspis, Pycnaspis, Karelosteus, Anatolepsis, Listraspis, Pionaspis, Strophisterus, Allocryptaspis, Poriferaspis, Schizosteus, Corveolepis, Grumantaspis, Alainaspis, Aspidosteus, Kiangsuaspis, Homaspidella, Obliaspis, Yoglinia, Clydonaspis, Palaeodus, Seretaspis, Pilolepsis, Asketaspis
Subtaxa: none
Ecology:
Distribution: there are no occurrences of Drepanaspidae in the database