| details |
Early Oligocene |
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Russia(Caucasus) |
Krasheninnikov,V.A. et al. Reference sections of the Eocene - Oligocene boundary strata on the territory of the former Soviet Union. The Kuban River section (Northern Caucasus, Russia). (In: Late Eocene-Early Oligocene geological and Biotical events on the Territory of the Former Soviet Union.Part 2: The Regional Geology of the Upper Eocene and Lower Oligocene. (V.A.Krasheninnikov and A.Akhmetiev, editors) |
1996 |
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India(Assam) |
Mehrotra,N.C. et al. Assam-Arakan Basin. (In: Palynology in Hydrocarbon Exploration:The Indian Scenario. Part 1: Category I : Basins) |
2002 |
| details |
Rupelian |
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Germany(Rhineland) |
Pross,J. et al. Early Oligocene dinoflagellate cysts from the Upper Rhine Graben (SW Germany): paleoenvironmental and paleoclimatic implications. |
2002 |