†Quinquelithes Syssoiev 1958 (mollusk)
Parent taxon: Calyptoptomatida according to D. W. Fisher 1962
Sister taxa: Adyshevitheca, Camerothecida, Cupithecina, Globorilida, Kygmaeoceras, Neogloborilus, Persicithecidae, Phragmotheca, Stimulitheca
Subtaxa: none
Ecology: epifaunal