Kingdom Animalia Linnaeus, 1758 - animals
Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs
see Class Gastropoda Cuvier, 1795
Order Archaeogastropoda Thiele, 1925
see Order Vetigastropoda Salvini-Plawen, 1980
Family Fissurellidae Fleming, 1822 - keyhole limpets
Genus Diodora Gray, 1821
Genus Fissurella Bruguière, 1789