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
             01 Family Drilliidae Olsson, 1964
             02 Family Pseudomelatomidae Morrison, 1965
             03 Family Turridae Adams & Adams, 1853 (1838) - turret snails
             04 Family Conidae Fleming, 1822 - cone snails
             05 Genus Cretaspira Kuroda & Oyama, 1971, incertae sedis
             06 Genus Graciliclava Shuto, 1983, incertae sedis
             07 Genus Inkinga Kilburn, 1988, incertae sedis
             08 Genus Kurodadrillia Azuma, 1975, incertae sedis
             09 Genus Lioglyphostomella Shuto, 1970, incertae sedis
             10 Genus Meggirria Millard, 1996, orth. inval., incertae sedis see Genus Meggittia Ray, 1977, nom. illeg.
             11 Genus Thatcheriasyrinx Powell, 1969, incertae sedis
             12 Genus Viridoturris Powell, 1964, incertae sedis
             13 Genus †Maoridaphne Powell, 1942, incertae sedis
             14 Genus Pseudodexomilus Millard, 1996, orth. inval., incertae sedis see Genus Pseudexomilus Powell, 1944
             15 Subgenus Pleurotomoides Bronn, 1831 see Genus Pleurotomoides Bronn, 1831
             16 Subgenus Cyrtocythara Nordsieck, 1977
             17 Genus †Reticuloturris Shuto, 1984
             18 Genus Irenosyrinx Dall, 1908
             19 Genus Marshallaria Finlay & Marwick, 1937
             20 Genus Pseudotaranis McLean, 1995
             21 Genus Brachytoma Swainson, 1840, nom. dub.
             22 Genus Crassopleura Monterosato, 1884
             23 Family Terebridae Mörch, 1852 - auger shells