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 Eucyclinae Koken, 1897 see Family Eucyclidae Koken, 1896
                 1 Tribe †Eucyclini Koken, 1897 see Family Eucyclidae Koken, 1896
                 2 Tribe Chilodontini Wenz, 1938, nom. illeg. see Subfamily Chilodontinae Wenz, 1938, nom. illeg.
                 3 Tribe Calliotropini Hickman & McLean, 1990 see Subfamily Calliotropinae Hickman & McLean, 1990