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
Subgenus Spikator Lindner & Vevers, 1977, orth. inval.
see Subgenus Spicator Cotton & Godfrey, 1935