Classification of Dickins 1956
G. Nuculana Link 1807
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†Nuculana lyonsensis Dickins 1956
†Nuculana thomasi Dickins 1956
G. †Parallelodon Meek and Worthen 1866
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†Parallelodon subtilistriatus Wanner 1922
G. †Oriocrassatella Etheridge Jr. 1907
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†Oriocrassatella stokesi Etheridge Jr. 1907
G. †Astartila Dana 1847
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†Astartila blatchfordi Hosking 1931
†Astartila fletcheri Dickins 1956
Fm. Astartidae d'Orbigny 1844
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Fm. †Myalinidae Frech 1891
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