Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Superorder Archaeogastropoda Thiele, 1925
         Order Vetigastropoda Salvini-Plawen, 1980 - archaeogastropods s.l.
           Superfamily Trochoidea Rafinesque, 1815
             Family Trochidae Rafinesque, 1815 - top snails
               Subfamily Calliostomatinae Thiele, 1924 (1847)
                 Genus Calliostoma Swainson, 1840
                   01 Subgenus Alertalex Dell, 1956
                   02 Subgenus Benthastelene orth. inval. see Subgenus Benthastelena Iredale, 1936
                   03 Subgenus Elmerlinia Clench & Turner, 1960
                   04 Subgenus Fautor Iredale, 1924
                   05 Subgenus Kombologion Clench & Turner, 1960
                   06 Subgenus Laetifautor Iredale, 1929
                   07 Subgenus Sinutor Cotton & Godfrey, 1935
                   08 Subgenus Spikator Lindner & Vevers, 1977, orth. inval. see Subgenus Spicator Cotton & Godfrey, 1935
                   09 Subgenus Tristichotrochus Ikebe, 1942
                   10 Subgenus Ziziphinus Gray, 1843