| link
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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 Conemaugh | Ohio | Smith,A.H.V. et al. Genus Verrucosisporites (Ibrahim) Smith and Butterworth. | 1964 | |
| details | Pennsylvanian | Oklahoma | Urban,L.L. Palynology of the Drywood and Bluejacket Coals (Pennsylvanian) of Oklahoma. | 1965 | |
| details | Middle Pennsylvanian | Oklahoma | Dolly,E.D. Palynology of the Bevier Coal (Pennsylvanian ) of Oklahoma. | 1965 | |
| details | Virgilian | Texas | Stone,J.F. Palynology of the Fort Belknap Coal (Pennsylvanian), of North Central Texas. | 1966 |