| 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 | Cambrian | USSR(Lithuanian SSR) | Bagdasaryan,L.L. Results of micropalaeophytological investigations of oils and stratum waters. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) | 1973 | |
| details | Archean | India | Venkatachala,B.S. A decade of stratigraphic palynology in India. | 1976 | |
| details | Acadian | Late Ordovician | Czechoslovakia | VavrdovЎ,M. Phytoplankton communities of Cambrian and Ordovician age of Central Bohemia | 1982 |