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Author - title
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Year
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| details | Early Carboniferous | USSR(Arkhangelsk Oblast) | Yalysheva,A.A. The age of the Timan Bauxite deposits according to palynological data. (In: Paleomikrofitologicheskie issledovaniya dlya tselei stratigrafii. L.A. Panova, editor.) | 1980 | |
| details | Early Triassic | Syria | Bebeshev,I.I. et al. Triassic deposit of Syria | 1988 |