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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 | Early Eocene | Middle Eocene | North Sea | Boulter,M.C. Pollen and spore events from the marine Tertiary of North Europe | 1986 |
| details | Oligocene | N.Ireland | Boulter,M.C. Irish Tertiary plant fossils in a European Context | 1980 |