†family Protaspididae (jawless fish)
Pteraspidomorpha - Pteraspidiformes - Protaspididae
Parent taxon: Pteraspidoidei according to E. Randle and R. S. Sansom 2017
See also Nelson et al. 2016
Sister taxa: Alaeckaspis, Blieckaspis, Djurinaspis, Doryaspidae, Eucyclaspis, Europrotaspis, Lamiaspis, Larnovaspis, Mylopteraspidella, Oreaspis, Panamintaspis, Parapteraspis, Pirumaspis, Podolaspis, Protaspis, Psammosteidae, Pteraspis, Rhinopteraspididae, Semipodolaspis, Unarkaspis
Subtaxa: Cosmaspis Cyrtaspidichthys Helaspis Lampraspis Psephaspis Tuberculaspis
Ecology:
Distribution: