†unranked clade Cephalaspidiens Janvier 1985 (vertebrate)
Petromyzontida - Cephalaspidiformes
Full reference: P. Janvier. 1985. Les Céphalaspides du Spitzberg. 1-244
Parent taxon: Cornuata according to P. Janvier 1985
Sister taxa: Cephalaspis, Hildenaspis, Mimetaspis, Pattenaspis
Subtaxa: Cephalaspidae
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Cephalaspidiens in the database