†suborder Amphiaspidoidei (jawless fish)
Pteraspidomorpha - Cyathaspidiformes
Parent taxon: Cyathaspidiformes according to R. van der Laan 2019
See also Novitskaya 1971
Sister taxa: Cyathaspididae, Cyathaspidoidei, Hibernaspidoidei, Siberiaspidoidei
Subtaxa: Amphiaspididae Angaraspididae Edaphaspididae Gabreyaspididae Olbiaspididae
Ecology: planktonic suspension feeder
Distribution:
• Devonian of the Russian Federation (6 collections)
Total: 6 collections including 17 occurrences