| link
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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 | Middle Miocene | Middle Miocene | Poland | Doktorowicz-Hrebnicka,J. Correlation of Brown Coal Seams from the Provinces of Poznan and Bydgoszcz. Part 2 of stratigraphy of the Middle Miocene in Cental Poland based on spore and pollen analysis of Brown Coal from the Provinces of Bydgoszcz and Poznan. | 1960 |
| details | Nd | Nd | Boulter,M.C. et al. A system of group names for some Tertiary pollen. | 1977 |