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Author - title
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Year
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| details | Stephanian B | Stephanian C | W.Germany(Saarland) | Bharadwaj,D.C. The spore genera from the Upper Carboniferous Cos of the Saar and their value in stratigraphical studies. | 1956 |
| original | Stephanian C | W.Germany(Saarland) | Bharadwaj,D.C. Some new spore genera from the Saarkarbons. | 1954 |