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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 A | Westphalian B | Czechoslovakia | Jachowicz,A. Boundary between Ruda and Orzesze Beds in "Silesia" Coal Mine in view of microspore investigations, (Upper Silesia). (In: Contributions to the Geology of the Silesian and Cracovian Regions.) | 1957 |
| original | Namurian B | Westphalian B | Poland | DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. | 1957 |
| details | Namurian B | Westphalian B | Poland | DybovЎ,S. et al. Microspore zones in Upper Silesian productive Carboniferous. | 1957 |