Classification of Sanchez 1999

G. †Concavodonta Babin 1972
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†Concavodonta ovalis Sanchez 1999
Subfm. Malletiinae Adams and Adams 1858
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G. †Concavoleda Sanchez 1999
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†Concavoleda braulense Sanchez 1999
Fm. †Praenuculidae McAlester 1968
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Subfm. †Concavodontinae Sanchez 1999
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G. †Emiliania Sanchez 1999
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†Emiliania cuerdai Sanchez 1999
G. †Hemiconcavodonta Sanchez 1999
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†Hemiconcavodonta minuta Sanchez 1999
Subfm. †Praenuculinae McAlister 1969
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G. †Cuyopsis Sanchez 1999
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†Cuyopsis symmetricus Sanchez 1999
G. †Trigonoconcha Sanchez 1999
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†Trigonoconcha acuta Sanchez 1999
G. †Villicumia Sanchez 1999
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†Villicumia canteraensis Sanchez 1999