†suborder Ateleaspidoidei (vertebrate)
Osteostraci - Cephalaspidiformes
Parent taxon: Cephalaspidiformes according to R. van der Laan 2019
Sister taxa: Aachenaspis, Cephalaspidoidei, Fieldingaspis, Meelaidaspis, Ohesaareaspis, Scolenaspidoidei, Tuvaspis
Subtaxa: Ateleaspididae Kalanaspididae
Ecology: planktonic suspension feeder
Distribution:
• Devonian of Canada (1: Nunavut collection)
• Silurian of Canada (1: Nunavut), Estonia (1), Norway (4), the United Kingdom (10)
Total: 17 collections including 21 occurrences