†family Cyphosomatidae (sea urchin)
Echinoidea - Aulodonta - Cyphosomatidae
Parent taxon: Diademina according to W. B. Clark and M. W. Twitchell 1915
Sister taxa: none
Subtaxa: Orthechinus
Ecology: epifaunal grazer-deposit feeder
Distribution: found only at Hinglaj Group (Pliocene of Pakistan)