†class Cephalaspidomorphi Moy-Thomas and Mile 1971 (vertebrate)
Synonym: Monorhina
Full reference: J. A. Moy-Thomas and R. S. Mile. 1971. Palaeozoic Fishes
Parent taxon: Osteostracomorphi according to J. S. Nelson et al. 2016
See also Gadow 1898, Jaekel 1911, Long 2011, Sepkoski 2002 and van der Laan 2019
Sister taxa: Galeaspidomorphi, Halecopsidae, Osteostraci
Subtaxa: Atelaspidiformes Cephalaspidida Galeaspidiformes
Ecology: fast-moving nektonic carnivore