Classification of Carter 1967
G. †Rhytiophora
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†Rhytiophora blairi Miller 1891
†Rhytiophora calhounensis Moore 1928
G. †Coledium Grant 1965
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†Coledium altisulcatum Carter 1967
†Coledium costulatum Carter 1967
†Coledium evexum Grant 1965
†Coledium undulatum Grant 1965
†Coledium vadosulcatum Carter 1967
G. †Amesopleura Carter 1967
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†Amesopleura novamexicana Miller 1881
†Amesopleura texana Carter 1967
G. †Cleiothyridina Buckman 1906
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†Cleiothyridina prouti Swallow 1860
†Cleiothyridina tenuilineata Rowley 1900
G. †Crassumbo Carter 1967
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†Crassumbo inornatus Carter 1967
†Crassumbo turgidus Carter 1967
G. †Spirifer Sowerby 1818
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†Spirifer chappelensis Carter 1967
†Spirifer gregeri Weller 1914
G. †Tylothyris North 1920
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†Tylothyris brevaurita Carter 1967
†Tylothyris missouriensis Weller 1906
G. †Cranaena Hall and Clarke 1893
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†Cranaena dorsisulcata Carter 1967
†Cranaena hannibalensis Moore 1928
†Cranaena texana Carter 1967