Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs
see Class Gastropoda Cuvier, 1795
Order Caenogastropoda Cox, 1960
see Superorder Caenogastropoda Cox, 1960
Suborder Architaenioglossa Haller, 1890
Superfamily Cerithioidea Fleming, 1822
Family Siliquariidae Anton, 1838 [monotypic]
Genus Tenagodus Guettard, 1770
1 Subgenus Agathirses Montfort, 1808
2 Subgenus Pyxipoma Mörch, 1861
3 Subgenus Tenegodus Millard, 1996, orth. inval.
see Subgenus Tenagodus Guettard, 1770