Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938
         Suborder Toxoglossa (Troschel, 1848) see Superfamily Conacea Rafinesque, 1815
           Superfamily Conacea Rafinesque, 1815 see Superfamily Conoidea Fleming, 1822
             Family Turridae Adams & Adams, 1853 (1838) - turret snails
               1 Subfamily Borsoniinae Bellardi, 1875 see Genus group borsoniid group
               2 Subfamily Clathurellinae Adams & Adams, 1858
               3 Subfamily Clavinae Casey, 1904, nom. illeg. see Family Drilliidae Olsson, 1964
               4 Subfamily Cochlespirinae Powell, 1942
               5 Subfamily Mitromorphinae Casey, 1904 see Genus group mitromorphid group
               6 Subfamily Raphitominae Bellardi, 1875
               7 Subfamily Thatcheriinae Powell, 1942 see Subfamily Raphitominae Bellardi, 1875
               8 Subfamily Turrinae Adams & Adams, 1853 (1838)