Full reference: P. Tarrant. 1991. The ostracoderm Phialaspis from the Lower Devonian of the Welsh Borderland and South Wales. Palaeontology 34:399-438
Parent taxon: Heterostraci according to P. Tarrant 1991
Sister taxa: Amphiaspidiformes, Aporemaspis, Ariaspididae, Aserotaspis, Cardipeltida, Cardipeltidae, Cardipeltiformes, Ceraspidae, Corvaspidida, Corvaspidiformes, Cyathaspida, Cyathaspidiformes, Drepanaspidae, Guerichosteidae, Lepidaspidida, Lepidaspidiformes, Olbiaspidida, Palaeaspidi, Psammolepis, Psammosteiformes, Pteraspidi, Pteraspidiformes, Rimasventeraspis, Strosipherus, Tesseraspidida, Tesseraspidiformes, Tolypelepidida, Tolypelepidiformes, Toombsaspis, Traquairaspidida, Traquairaspidiformes, Seretaspis, Irregulariaspis, Obliaspis, Pilolepsis, Archodus, Karelosteus, Schizosteus, Corveolepis, Alainaspis, Homaspidella, Dyreaspis, Allocryptaspis, Grumantaspis, Steinaspis, Listraspis, Ennosviaspis, Asketaspis, Kiangsuaspis, Anatolepsis, Poriferaspis, Yoglinia, Pycnaspis, Gunaspis, Clydonaspis, Pionaspis, Athenaegis, Strophisterus
Subtaxa: Munchoaspis denisoni
Ecology:
Distribution: found only at 30 miles NW of Muncho Lake, mile 450 on Alaska highway (Devonian of British Columbia)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.