Classification of Dake and Bridge 1932

G. †Pelagiella Matthew 1895
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Pelagiella paucivoluta Calvin 1892
G. †Lecanospira Butts 1926
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Lecanospira sanctisabae Roemer 1849
G. †Ophileta Vanuxem 1842
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Ophileta polygyrata Roemer 1849
G. †Ozarkina Ulrich et al. 1931
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Ozarkina typica Ulrich et al. 1931
G. †Roubidouxia Butts 1926
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Roubidouxia umbilicata Dake and Bridge 1932
G. †Eccyliomphalus Portlock 1843
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Eccyliomphalus gyroceras Roemer 1852