Mollusca Linnaeus, 1758 - molluscs
see Phylum Mollusca Linnaeus, 1758
Gastropoda Cuvier, 1795
see Class Gastropoda Cuvier, 1795
Clade Heterobranchia Burmeister, 1837
see Superorder Heterobranchia Burmeister, 1837
Informal Group "Lower Heterobranchia"
Superfamily Acteonoidea d'Orbigny, 1843
Family †Acteonellidae Gill, 1871
1 Subfamily †Acteonellinae Gill, 1871
2 Subfamily †Cylindrobullininae Wenz, 1938
3 Subfamily †Itieriinae Cossmann, 1896