Order Craniopsida Gorjansky and Popov 1985 (lamp shell)
Parent taxon: Craniata according to A. Williams et al. 2000
See also Sepkoski 2002, Skovsted 2006 and Williams et al. 1996
Sister taxa: Craniida, Melbournopterus, Patella ottomana, Trimerellida
Subtaxa: Craniopsioidea Craniopsoidea
Ecology: stationary epifaunal suspension feeder