†family Palaeorissoinidae Gründel and Kowalke 2002 (snail)
Parent taxon: Rissooidea according to P. Bouchet et al. 2005
Sister taxa: Adeorbidae, Amnicolidae, Anabathridae, Assimineidae, Barleeidae, Bithyniidae, Caecidae, Calopiidae, Cochliopidae, Cyclotropis, Elachisinidae, Emblandidae, Epigridae, Falsicingulidae, Helicostoidae, Hydrobiidae, Hydrococcidae, Iravadiidae, Lithoglyphidae, Mesocochliopidae, Moitessieriidae, Pomatiopsidae, Rissoidae, Stenothyridae, Tornidae, Truncatellidae, Vitrinellidae
Subtaxa: Greveniellinae, Palaeorissoininae
Ecology: epifaunal grazer