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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 Visean | Early Namurian | Poland | Krawczynska-Grocholska,H. The Namurian of the Nowa Ruda Basin in the light of palynological studies. | 1960 |
| details | Visean | Namurian | Poland | Zoldani,Z. Megaspore studies. (In: The results of Kozlowa Gora borehole. A.Jachowicz et al, editors). | 1968 |