Placodermi - Acanthothoraci - Palaeacanthaspidae
Full reference: E. Stensio. 1944. Contributions to the knowledge of the vertebrate fauna of the Silurian and Devonian of Western Podolia. II. Notes on two Arthrodires from the Downtonian of Podolia. Arkiv for Zoologi 35A:1-83
Parent taxon: Acanthothoraci according to R. van der Laan 2019
See also Denison 1975 and Denison 1978
Sister taxa: Breizosteus, Hagiangellidae, Kolymaspididae, Murrindalaspis, Radotinidae, Weejasperaspidae
Subtaxa: Arabosteus Dobrowlania Kimaspis Kolymaspis Kosoraspis Palaeacanthaspis Radotina Romundina Sudaspis Tlamaspis
Ecology: nektonic carnivore
Distribution:
• Devonian of Canada (3: Northwest Territories, Nunavut collections), Czechia (2), Japan (1), the Russian Federation (1), Saudi Arabia (1), Uzbekistan (1)
Total: 9 collections including 13 occurrences