Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Conchifera Gegenbauer, 1878
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Orthogastropoda Ponder & Lindberg, 1995
Superorder Cocculiniformia Haszprunar, 1987
see Superfamily Cocculinoidea Dall, 1882
Superfamily Lepetelloidea Dall, 1882
Family Pseudococculinidae Hickman, 1983
Subfamily Caymanabyssiinae Marshall, 1986
see Family Caymanabyssiidae Marshall, 1986