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From
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Geolocation
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Author - title
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Year
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| details | Oligocene | China(Hopei) | Xu,J. et al. On the Paleogene microphytoplankton from the Shengli oil-bearing region, Shandong, China | 1997 | |
| details | Nd | Nd | Xu,J. et al. On the Paleogene microphytoplankton from the Shengli oil-bearing region, Shandong, China | 1997 |