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 Turbonillinae Bronn, 1849 [monotypic]
               Genus Turbonilla Risso, 1826
                 01 Subgenus Asmunda Dall & Bartsch, 1904
                 02 Subgenus Baldra Dall & Bartsch, 1904
                 03 Subgenus Bartschella Iredale, 1916
                 04 Subgenus Careliopsis Mörch, 1895
                 05 Subgenus Chemnitzia d'Orbigny, 1840
                 06 Subgenus Dunkeria Carpenter, 1857
                 07 Subgenus Lancella Dall & Bartsch, 1904
                 08 Subgenus Mormula Adams, 1863
                 09 Subgenus Nisiturris Dall & Bartsch, 1906
                 10 Subgenus Planpyrgiscus Laws, 1937
                 11 Subgenus Pselliogyra Dall & Bartsch, 1909
                 12 Subgenus Ptycheulimella Sacco, 1892
                 13 Subgenus Pyrgiscilla Laws, 1937
                 14 Subgenus Pyrgolampros Sacco, 1892
                 15 Subgenus Pyrgolidium Monterosato, 1884
                 16 Subgenus Striarcana Laws, 1937
                 17 Subgenus Strioturbonilla Sacco, 1892