Pteraspidomorpha - Pteraspidiformes
Alternative spelling: Pteraspidina
Parent taxon: Pteraspidiformes according to R. van der Laan 2019
See also Randle and Sansom 2017
Sister taxa: Anchipteraspididae, Dnestraspis, Podolaspinae, Protaspidae, Protopteraspididae, Psammosteoidei, Pteraspididae
Subtaxa: Alaeckaspis Blieckaspis Djurinaspis Doryaspidae Eucyclaspis Lamiaspis Larnovaspis Mylopteraspidella Oreaspis Panamintaspis Parapteraspis Pirumaspis Protaspididae Psammosteidae Pteraspis Rhinopteraspididae Unarkaspis
Ecology: planktonic suspension feeder
Distribution:
• Carboniferous of Ireland (1 collection), the United Kingdom (1)
• Devonian of Belarus (9), Belgium (1), Brazil (1), Canada (4: Alberta, Nunavut), Estonia (9), France (1), Germany (7), Greenland (1), Latvia (5), Norway (5), the Russian Federation (15), Svalbard and Jan Mayen (6), Ukraine (27), the United Kingdom (12), United States (10: California, Nevada, Ohio, Utah, Wyoming)
Total: 115 collections including 192 occurrences