Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
         Superfamily Rissooidea Gray, 1847
           Family Micromelaniidae Dybowski & Grochmalicki, 1914 see Subfamily Pyrgulinae Brusina, 1882 (1869)
             ?Subfamily Pyrgulinae Brusina, 1882 (1869)
               01 Genus Pyrgula Cristofori & Jan, 1832
               02 Genus Adrioinsulana Radoman, 1978
               03 Genus Chilopyrgula Brusina, 1896
               04 Genus Falsipyrgula Radoman, 1973
               05 Genus Ginaia Brusina, 1896
               06 Genus Macedopyrgula Radoman, 1973
               07 Genus Micropyrgula Polinski, 1929
               08 Genus Neofossarulus Polinski, 1929
               09 Genus Ochridopyrgula Radoman, 1955
               10 Genus Prespopyrgula Radoman, 1973
               11 Genus Pseudocaspia Starobogatov, 1972
               12 Genus Pyrgohydrobia Radoman, 1955
               13 Genus Stankovicia Polinski, 1929
               14 Genus Turricaspia Dybowski & Grochmalicki, 1915