Cephalaspidomorphi - Cephalaspidiformes

Parent taxon: Cephalaspidiformes according to J. J. Sepkoski 2002

Sister taxa: Aachenaspis, Darmuthia, Fieldingaspis, Ilemoraspis, Oeselaspis, Saaremaaspis, Sclerodus, Tannuaspis, Thyestes, Timanaspis, Tuvaspis, Tyriaspis, Tremataspidida, Benneviaspis, Kiaeraspis, Waengsjoeaspis, Thyestiida

Subtaxa: none

Ecology: fast-moving nektonic carnivore