Phylum [Mollusca] Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs
see Class Gastropoda Cuvier, 1795
Order Mesogastropoda Thiele, 1925 - mesogastropods
see [unranked] mesogastropods
Suborder Taenioglossa
see Order Mesogastropoda Thiele, 1925
Superfamily Calyptraeacea Lamarck, 1809, nom. illeg.
see Superfamily Calyptraeoidea Lamarck, 1809
Family Crepidulidae Fleming, 1822 - slipper-shells
see Family Calyptraeidae Lamarck, 1809
Subfamily Crepidulinae Fleming, 1822
see Family Calyptraeidae Lamarck, 1809
Genus Crepidula Lamarck, 1799
1 Subgenus Crepidula (Crepidula) Lamarck, 1799
2 Subgenus Crepidula (Siphopatella) Lesson, 1833, orth. inval.