Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Heterobranchia Burmeister, 1837 [monotypic] see Superorder Heterobranchia Burmeister, 1837
       Order Heterostropha Fischer, 1885
         Superfamily Pyramidelloidea Gray, 1840
           Family Pyramidellidae Gray, 1840
             Subfamily Odostomiinae Casey, 1904
               Genus Chrysallida Carpenter, 1856
                 Subgenus Odontostomiella Cossmann & Peyrot, 1918, nom. illeg. see Genus Odostomella Bucquoy, Dautzenberg & Dollfus, 1883