Pteraspidomorpha - Cyathaspidiformes - Cyathaspididae
Alternative spelling: Cyathaspidae
Full reference: J. Kiaer. 1932. The Downtonian and Devonian vertebrates of Spitsbergen. IV, Suborder Cyathaspida. Skrifter Om Svalbard Og Ishavet 52:1-26
Parent taxon: Cyathaspidiformes according to D. K. Elliott 2016
See also Denison 1963, Elliott 2013, Kiaer 1932, Marss and Karatajute-Talimaa 2002, Nelson et al. 2016, Soehn and Wilson 1990 and van der Laan 2019
Sister taxa: Amphiaspidoidei, Cyathaspidoidei, Hibernaspidoidei, Siberiaspidoidei
Subtaxa: Alainaspis Anglaspidinae Archegonaspis Boothiaspidinae Cyathaspidinae Cyathaspis Dikenaspis Eoarchegonaspis Faberaspis Homalaspidella Irregulareaspidinae Pionaspis Poraspidinae Ptomaspis Sanidaspis Tolypelepidinae Vernonaspis
Type: Cyathaspis
Ecology: planktonic suspension feeder
Distribution:
• Devonian of Canada (16: Northwest Territories, Nunavut collections), France (1), Norway (12), the Russian Federation (5), Svalbard and Jan Mayen (2), Ukraine (7), the United Kingdom (3), United States (5: California, Nevada, Utah)
• Silurian to Devonian of Canada (2: Northwest Territories)
• Silurian of Canada (19: New Brunswick, Northwest Territories, Nunavut, Yukon), Estonia (3), Germany (2), Poland (1), the Russian Federation (4), Sweden (1), the United Kingdom (5), United States (6: New York, Pennsylvania)
Total: 94 collections including 167 occurrences