| 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 | Namurian B | Namurian C | Poland | Kmiecik,H. et al. Phyto and palynostratigraphy of the Carboniferous of the Warsaw area | 1979 |
| details | Badenian | Poland | Jachowicz,S. et al. Genesis of hard coal boulders in Sandstones of the Miocene Debowiec Formation | 1987 |