| details |
Late Eocene |
Early Oligocene |
Kazakstan |
Krasheninnikov,V.A. et al. Reference sections of the Eocene - Oligocene boundary strata on the territory of the former Soviet Union. The Northern Ustyurt sections (the Sandal Mountain and Aszeiryk Ravine, Western Kazakhstan). (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 ower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors) |
1996 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
|
|
Russia(Siberia) |
Bakieva,L.B. |
2002 |
| details |
Middle Bartonian |
Late Chattian |
Southern Hemisphere |
Williams,G.L. et al. Southern Ocean and Global Dinoflagellate Cyst Events compared: Index events for the Late Cretaceous-Neogene. |
2004 |
| details |
Middle Bartonian |
Late Chattian |
Northern Hemisphere |
Williams,G.L. et al. Southern Ocean and Global Dinoflagellate Cyst Events compared: Index events for the Late Cretaceous-Neogene. |
2004 |
| details |
Late Eocene |
Early Oligocene |
Italy |
Mourik,C.A.Van et al. The Massignano Eocene-Oligocene golden spike section revisited. |
2005 |