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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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| original | Namurian A | Westphalian C | Poland | DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. | 1957 |
| details | Namurian A | Westphalian C | Poland | DybovЎ,S. et al. Microspore zones in Upper Silesian productive Carboniferous. | 1957 |