Full reference: R. Denison. 1964. The Cyathaspididae: a family of Silurian and Devonian jawless vertebrates. Fieldiana: Geology 13:309-473
Parent taxon: Pteraspidomorphes according to J. J., Jr. Sepkoski 2002
Sister taxa: Amphiaspidiformes, Aporemaspis, Ariaspididae, Aserotaspis, Cardipeltida, Cardipeltidae, Cardipeltiformes, Ceraspidae, Corvaspidida, Corvaspidiformes, Cyathaspida, Cyathaspidiformes, Drepanaspidae, Guerichosteidae, Lepidaspidida, Lepidaspidiformes, Munchoaspis, Olbiaspidida, Palaeaspidi, Psammolepis, Psammosteiformes, Pteraspidi, Pteraspidiformes, Rimasventeraspis, Strosipherus, Tesseraspidida, Tesseraspidiformes, Tolypelepidida, Tolypelepidiformes, Toombsaspis, Traquairaspidida, Traquairaspidiformes, Obliaspis, Corveolepis, Gunaspis, Alainaspis, Dyreaspis, Schizosteus, Seretaspis, Strophisterus, Pilolepsis, Asketaspis, Kiangsuaspis, Allocryptaspis, Grumantaspis, Karelosteus, Poriferaspis, Steinaspis, Pycnaspis, Yoglinia, Irregulariaspis, Athenaegis, Archodus, Clydonaspis, Pionaspis, Homaspidella, Ennosviaspis, Anatolepsis
Subtaxa: Listraspis canadensis
Ecology:
Distribution: found only at Loc. R5-61, 2100' of California Standard Company (Devonian of British Columbia)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.