Classification of Nelson 1925
G. Solariella Wood 1842
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†Solariella minorstriata Nelson 1925
†Solariella transennata Nelson 1925
G. Turritella Lamarck 1799 [turret shell]
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†Turritella hannai Nelson 1925
†Turritella subuvasana Nelson 1925
†Turritella susanaensis Nelson 1925
G. †Cryptochorda Mörch 1858
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G. Fusinus Rafinesque 1815
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Subg. †Fusinus (Levifusus) Conrad 1865
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†Fusinus (Levifusus) calabasasensis Nelson 1925
†Fusinus (Levifusus) waringi Nelson 1925
†Fusinus simiensis Nelson 1925
G. Turricula Schumacher 1817
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†Turricula calafia Nelson 1925
†Turricula waringi Nelson 1925
G. Modiolus Lamarck 1801
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†Modiolus altiobliquus Nelson 1925
†Modiolus lawsoni Nelson 1925
G. Callocardia Adams 1864
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†Callocardia simiensis Nelson 1925
†Callocardia sinedepressa Nelson 1925
G. Macrocallista Meek 1876
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†Macrocallista caryi Nelson 1925
†Macrocallista furlongi Nelson 1925
†Macrocallista stantoni Waring 1917
G. Tellina Linnaeus 1758
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†Tellina crooki Nelson 1925
†Tellina simiensis Nelson 1925
†Tellina undulifera Gabb 1869
G. Acteon Montfort 1810
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†Acteon simiensis Nelson 1925
†Acteon susanaensis Nelson 1925
†Acteon venturaensis Nelson 1925
Subg. Polinices (Euspira) Agassiz 1837
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†Polinices (Euspira) simiensis Nelson 1925