Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Conchifera Gegenbauer, 1878
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Orthogastropoda Ponder & Lindberg, 1995
Superorder Heterobranchia Burmeister, 1837
Order Heterostropha Fischer, 1885
Superfamily Pyramidelloidea Gray, 1840
Family Odostomiidae Casey, 1904
see Tribe Odostomiini Casey, 1904
Subfamily Cyclostremellinae D.R. Moore, 1966
see Tribe Cyclostremellini Moore, 1966