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Manger, Miller & Mapes |
1992 |
Age and Correlation of the Gene Autry Shale, Ardmore Basin, Southern Oklahoma.
Oklahoma Geological Survey Circular, 94: 101-109, pl.1, 3 figs.
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McCaleb |
1968 |
Lower Pennsylvanian Ammonoids from the Bloyd Formation of Arkansas and Oklahoma.
Special Paper of the geological Society of America, 96: 1-123, fig.1-27, pl.1-12; Boulder,Colorado.
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