Full reference: O. Jaekel. 1911. Die Wirbeltiere. Eine Übersicht über die Fossilen und Lebenden Formen [The Vertebrates. An Overview of the Fossil and Living Forms] viii-252
Parent taxon: Heterostraci according to O. Jaekel 1911
Sister taxa: Amphiaspidiformes, Aporemaspis, Ariaspididae, Aserotaspis, Cardipeltida, Cardipeltidae, Cardipeltiformes, Ceraspidae, Corvaspidida, Corvaspidiformes, Cyathaspida, Cyathaspidiformes, Drepanaspidae, Guerichosteidae, Lepidaspidida, Lepidaspidiformes, Munchoaspis, Olbiaspidida, Palaeaspidi, Psammolepis, Psammosteiformes, Pteraspidiformes, Rimasventeraspis, Strosipherus, Tesseraspidida, Tesseraspidiformes, Tolypelepidida, Tolypelepidiformes, Toombsaspis, Traquairaspidida, Traquairaspidiformes, Clydonaspis, Dyreaspis, Allocryptaspis, Yoglinia, Corveolepis, Karelosteus, Schizosteus, Asketaspis, Archodus, Grumantaspis, Anatolepsis, Pycnaspis, Strophisterus, Irregulariaspis, Seretaspis, Pionaspis, Kiangsuaspis, Listraspis, Poriferaspis, Pilolepsis, Steinaspis, Ennosviaspis, Alainaspis, Homaspidella, Obliaspis, Gunaspis, Athenaegis
Subtaxa: none
Ecology:
Distribution: there are no occurrences of Pteraspidi in the database