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Geolocation
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Author - title
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Year
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| details | Middle Ordovician | Estonia | Uutela,A. Extent of the Northern Baltic Sea during the Early Palaeozoic Era: New Evidence from Ostrobothnia, western Finland. | 1998 | |
| details | Late Llandoverian | China(Zhejiang) | Yin,L. et al. Palynomorphs from the transitional sequences between Ordovician and Silurian of northwestern Zhejiang, South China. | 2000 |