| 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 | Westphalian B | Early Stephanian B | Pennsylvania | Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. | 1980 |
| details | Westphalian B | Early Stephanian B | Illinois | Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. | 1980 |
| details | Late Stephanian B | Stephanian C | Poland | Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. | 1980 |