Classification of Ladd 1972
Fm. Turritellidae Lovén 1847 [turret shell]
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G. Tenagodus Guettard 1770
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Subg. Tenagodus (Agathirses) Montfort 1808
Subg. Tenagodus (Tenagodus) Guettard 1770
G. Turritella Lamarck 1799 [turret shell]
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Subg. Turritella (Kurosioia) Ida 1952
Subg. Turritella (Torcula) Gray 1847
G. Vermicularia Lamarck 1799
Fm. Architectonicidae Gray 1850
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G. Architectonica Röding 1798 [sundial]
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Subg. Architectonica (Architectonica) Röding 1798
Subg. Architectonica (Pseudotorinia) Sacco 1892
G. †Climacopoma Fischer 1884
G. Heliacus d'Orbigny 1842
Fm. Caecidae Gray 1850
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G. Caecum Fleming 1813
G. Elephantanellum Barsch 1920
G. Fartulum Carpenter 1857
G. Micranellium Bartsch 1920
Fm. Capulidae Fleming 1822
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Fm. Cerithiadae Fleming 1822 [cerith snail]
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G. Ataxocerithium Tate 1893
G. Clypeomorus Jousseaume 1888
G. Diala Adams 1861
G. Liocerithium Tryon 1887
G. Plesiotrochus Fischer 1878
Fm. Cerithiopsidae Adams and Adams 1853
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G. Cerithiopsis Hanley 1849
G. †Cyrbasia
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Subg. †Cyrbasia (Joculator) Hedley 1909
Invalid names: Tiarella Cossmann 1889 [synonym]
Fm. Epitoniidae Berry 1910 [wentletrap]
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G. Epitonium Bolten 1798
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Subg. Epitonium (Boreoscala) Kobelt 1905
Subg. Epitonium (Clathrus) Oken 1815
Subg. Epitonium (Cycloscala) Dall 1889
Subg. Epitonium (Gyroscala) de Boury 1887
Fm. Hipponicidae Troschel 1861 [hoof shell]
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G. Cheilea Modeer 1793
G. Hipponix Defrance 1819
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Subg. †Hipponix (Antisabia) Iredale 1917
Subg. Hipponix (Malluvium) Melvill 1906
Subg. Hipponix (Pilosabia) Iredale 1929
Subg. Hipponix (Sabia) Gray 1847
Fm. Potamididae Adams and Adams 1854 [horn snail]
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G. Cerithidea Swainson 1840
G. †Potamides Brongniart 1810
G. Terebralia Swainson 1840
G. Tympanotonos Schumacher 1817
G. †Vicarya d'Archiac and Haime 1854
Fm. Strombidae Rafinesque 1815 [true conch]
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G. Strombus Linnaeus 1758 [conch]
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Subg. Strombus (Canarium) Schumacher 1817
Subg. Strombus (Conomurex) Fischer 1884
Subg. Strombus (Dolomena) Iredale 1931
Subg. Strombus (Euprotomus) Gill 1870
Subg. Strombus (Gibberulus) Jousseaume 1888
Subg. Strombus (Laevistrombus) Kira 1955
Subg. Strombus (Tricornis) Jousseaume 1886
G. Varicospira Eames 1952
Fm. Triphoridae Gray 1847
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G. †Cautotriphora Laws 1940
G. Triphora Blainville 1828
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Subg. †Triphora (Inella) Bayle 1878
Subg. †Triphora (Iniforis) Jousseaume 1884
Subg. †Triphora (Mastonia) Hinds 1843
Subg. Triphora (Triphora) Blainville 1828
G. Viriola Jousseaume 1884
Fm. Xenophoridae Troschel 1852 [carrier shell]
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G. Tugurium Fischer 1880
G. Xenophora Fischer von Waldheim 1807
Fm. Adeorbidae Monterosato 1884
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G. Daronia Adams 1861
G. Lydiphnis Melvill
G. Munditiella Kuroda and Habe 1954
Invalid names: Tornidae Sacco 1896 [synonym]
G. Amphithalmus Carpenter 1864
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Fm. Cerithiidae Fleming 1822 [cerith snail]
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G. Cerithium Bruguière 1789
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Subg. Cerithium (Cerithium) Bruguiére 1789
Subg. Cerithium (Conocerithium) Sacco 1895
Subg. Cerithium (Thericium) Monterosato 1809
G. Rhinoclavis Swainson 1840
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Subg. Rhinoclavis (Proclava) Thiele 1929
Subg. Rhinoclavis (Pseudovertagus) Vignal 1904
Subg. Rhinoclavis (Rhinoclavis) Swainson 1840