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 Stenoglossa Bouvier, 1887
           Superfamily Conoidea Fleming, 1822
             Family Turridae Adams & Adams, 1853 (1838) - turret snails
               Subfamily Crassispirinae McLean, 1971
                 Genus Crassispira Swainson, 1840
                   01 Subgenus Crassispira Swainson, 1840
                   02 Subgenus †Birmadrillia Shuto, 1984
                   03 Subgenus Burchia Bartsch, 1944
                   04 Subgenus Crassispirella Bartsch & Rehder, 1939
                   05 Subgenus Dallspira Bartsch, 1950
                   06 Subgenus Gibbaspira McLean, 1971
                   07 Subgenus Glossispira McLean, 1971
                   08 Subgenus Monilispira Bartsch & Rehder, 1939
                   09 Subgenus Striospira Bartsch, 1950
                   10 Subgenus Tripia Gregorio, 1890