Classification of Dickerson 1913

G. Trochocyathus Milne-Edwards and Haime 1848
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†Trochocyathus perrini Dickerson 1913
G. Calliostoma Swainson 1840
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†Calliostoma arnoldi Dickerson 1913
G. Bittium Gray 1847
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†Bittium longissimum Cooper 1894
G. Turritella Lamarck 1799 [turret shell]
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†Turritella merriami Dickerson 1913
G. Cancellaria Lamarck 1799
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†Cancellaria irelaniana Cooper 1894
†Cancellaria stantoni Dickerson 1913
G. †Caricella Conrad 1835
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†Caricella stormsiana Dickerson 1913
G. Drillia Gray 1838
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†Drillia ullreyana Cooper 1894
G. Fusinus Rafinesque 1815
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Subg. †Fusinus (Priscofusus) Conrad 1865
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G. †Olivula
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†Olivula marysvillensis Dickerson 1913
G. Phos Monfort 1810
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†Phos martini Dickerson 1913
G. Siphonalia Adams 1863
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†Siphonalia sutterensis Dickerson 1913
G. Surcula Adams and Adams 1853
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†Surcula clarki Dickerson 1913
†Surcula crenatospira Cooper 1894
†Surcula davisiana Cooper 1894
†Surcula holwayi Dickerson 1913
G. Terebra Bruguière 1789
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†Terebra wattsiana Cooper 1894
G. Turris Röding 1798
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†Turris andersoni Dickerson 1913
†Turris inconstans Cooper 1894
†Turris monolifera Cooper 1894
†Turris perkinsiana Cooper 1894
†Turris suturalis Cooper 1894
G. Voluta Linnaeaus 1758
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†Voluta lawsoni Dickerson 1913
G. Architectonica Röding 1798 [sundial]
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†Architectonica weaveri Dickerson 1913
G. Nucula Lamarck 1799
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†Nucula cooperi Dickerson 1913
G. Tellina Linnaeus 1758
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†Tellina sutterensis Dickerson 1913
G. Glycimeris Da Costa 1778
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†Glycimeris marysvillensis Dickerson 1913
Fm. Olividae Latreille 1825 [olive snail]
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G. †Oliverato Cooper 1894
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†Oliverato californica Cooper 1894
G. †Clavella Swainson 1835
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†Clavella tabulata Dickerson 1913
G. Cordiera Rouault 1848
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†Cordiera gracillima Cooper 1894