†subfamily Poraspidinae Kiaer 1932
Pteraspidomorpha - Cyathaspididae
Alternative spellings: Poraspidae, Poraspinae
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: Cyathaspididae according to D. K. Elliott and M. A. Petriello 2011
See also Denison 1963, Kiaer 1932, Marss and Karatajute-Talimaa 2002 and Van Der Laan 2019
Sister taxa: Archegonaspis, Boothiaspidinae, Cyathaspis, Dikenaspis, Eoarchegonaspis, Ptomaspis, Vernonaspis
Subtaxa: Homalaspis Lechriaspis Poraspis
Distribution:
• Devonian of France (1 collection), Norway (1), the Russian Federation (2), Ukraine (1), United States (1: California)
Total: 6 collections including 10 occurrences