Family Helicostoidae Pruvot-Fol 1937 (snail)
Gastropoda - Sorbeoconcha - Helicostoidae
Parent taxon: Rissooidea according to P. Bouchet et al. 2005
Sister taxa: Adeorbidae, Barleeiidae, Bithyniidae, Cochliopidae, Cyclotropis, Emblandidae, Epigridae, Greveniella, Lithoglyphidae, Mesocochliopidae, Moitessieriidae, Palaeorissoinidae, Rissoidae, Torniidae
Subtaxa: none
Ecology: epifaunal grazer
Distribution: there are no occurrences of Helicostoidae in the database