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Geolocation
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Author - title
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Year
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| details | Late Oligocene | China(Shantung) | He,C.-Q. et al. Early Tertiary microphytoplankton from the Dongpu Region | 1989 | |
| details | Early Tertiary | China(Shantung) | Wang,K.-F. et al. A study on the algal assemblages of crude oil from Buried Hill and the source Bed of oil in China | 1986 |