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
                 Tribe †Eucyclini Koken, 1897 see Family Eucyclidae Koken, 1896
                   Genus †Eucyclophalus Millard, 1997, orth. inval. see Genus Eucyclomphalus Ammon, 1893