†suborder Cyathaspidoidei (jawless fish)
Pteraspidomorpha - Cyathaspidiformes
Parent taxon: Cyathaspidiformes according to R. Van Der Laan 2019
Sister taxa: Hibernaspidoidei, Siberiaspidoidei
Subtaxa: Americaspidae Dictyaspidellidae Dictyonaspidae Dinaspidellidae Irregularaspidae Torpedaspididae
Ecology:
Distribution: found only at Eurypterid-Associated Biota of the Anglaspis Horizon at Red Bay, Spitsbergen (Devonian of Norway)