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From
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To
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Geolocation
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Author - title
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Year
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| details | Late Pennsylvanian | Kentucky | Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky | 1961 | |
| details | Desmoinesian | Oklahoma | Davis,P.N. Palynology of the Rowe Coal (Pennsylvanian) of Oklahoma | 1961 | |
| original | Desmoinesian | Oklahoma | Morgan,J.L. Spores of Mcalester-Stigler Coal. | 1955 |