†family Orthostomidae Delpey 1940 (snail)
Gastropoda - Heterostropha - Orthostomidae
Parent taxon: Actaeonacea according to E. C. Allison 1955
Sister taxa: none
Subtaxa: none
Ecology: epifaunal carnivore
Distribution: there are no occurrences of Orthostomidae in the database