†family Oriostomatidae Koken 1896 (snail)
Parent taxon: Oriostomatoidea according to P. Bouchet et al. 2005
Sister taxon: Tubinidae
Subtaxa: Australonema, Beraunia, Didymalgia, Dohmella, Gemininodosa, Hecetastoma, Lineata, Morphotropis, Omphalonema, Oriomphalus, Oriostoma, Tophicola, Tubogyra
Type: Oriostoma
Ecology: stationary epifaunal suspension feeder