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 Turbinidae Rafinesque, 1815 - turban snails
Subfamily Tricoliinae Woodring, 1928 [monotypic]
Genus Tricolia Risso, 1826
Subgenus Eotricolia Kuroda & Habe, 1952