| 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 | Stephanian B | France | Alpern,B. et al. Stratigraphic distribution of some microspores of the Upper Carboniferous of France. | 1960 | |
| original | Middle Stephanian | France | Alpern,B. Contribution to the palynological and petrographic study of French Coals. | 1959 | |
| details | Stephanian A | Stephanian D | Czechoslovakia | Planderova,E. Biostratigraphical Valuation of the Carboniferous of the Choc Napp, based on palynology. | 1979 |