Classification of Wagner and Schilling 1923
G. Turritella Lamarck 1799 [turret shell]
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†Turritella lorenzana Wagner and Schilling 1923
G. Siphonalia Adams 1863
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†Siphonalia andersoni Wagner and Schilling 1923
†Siphonalia merriami Wagner and Schilling 1923
G. Spisula Gray 1837
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†Spisula muliniaformis Wagner and Schilling 1923
†Spisula rushi Wagner and Schilling 1923
G. Tivela Link 1807
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Subg. Pecten (Pecten) Müller 1776
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†Pecten (Pecten) dickersoni Wagner and Schilling 1923
Subg. Bullia (Buccinanops)
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†Bullia (Buccinanops) clarki Wagner and Schilling 1923
Subg. †Fusinus (Priscofusus) Conrad 1865
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†Fusinus (Priscofusus) hecoxi Arnold 1908
†Pecten (Lyropecten) vaughani Arnold 1906
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†Pecten (Lyropecten) vaughani emigdioensis Wagner and Schilling 1923
†Strepsidura lincolnensis Weaver 1916
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†Strepsidura lincolnensis lorenzana Wagner and Schilling 1923