Classification of Gaetani and Sacca 1984

G. †Sphenarina Cooper 1959
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†Sphenarina sicula Davidson 1870
G. †Ceramisia Cooper 1983
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†Ceramisia meneghiniana Seguenza 1865
G. Dallina Beecher 1893
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Dallina septigera Loven 1846
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Invalid names: Waldheimia peloritana Seguenza 1865 [synonym]
G. Gryphus Megerle von Mühlfeld 1811
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†Gryphus sphenoideus Philippi 1844
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Invalid names: Terebratula benoitiana Seguenza 1865 [synonym]
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Macandrevia cranium Muller 1776
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Invalid names: Terebratula amigdaloides Costa 1852 [synonym], Terebratula euthyra Philippi 1844 [synonym]
G. Fallax Atkins 1960
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†Fallax septatus Philippi 1844