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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 | Eocene | USSR(Yakut ASSR) | Prokhorova,S.M. et al. The tin bearing granitoids of the Yan-Indigirsk Lowland and places related to them. | 1973 | |
| details | Early Carboniferous | USSR(Yakut ASSR) | Mikhailova,T.E. et al. Palynologic characteristics of Devonian - Lower Carboniferous deposits of the Kempendyai structural prospecting Borhole Section. | 1966 | |
| details | Middle Eifelian | Tournaisian | Wales | Richardson,J.B. Devonian spores. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) | 1969 |