original |
Late Eocene |
Oligocene |
Canada(NWT) |
Norris,G. Palynostratigraphic study. (In: Stratigraphic correlation biostratigraphic zonation;Imp.Ivik K-54, 69'''33'36'' N.Lat,134'''29'01''W.Gon, NWT. L.W.Cummings, editor) |
1977 |
original |
Middle Eocene |
Late Eocene |
Atlantic(Greenland Sea) |
Firth,J.V. Upper Middle Eocene to Oligocene dinoflagellate biostratigraphy and assemblage variations in Hole 913B, Greenland Sea |
1996 |
original |
Late Eocene |
Rupelian |
Belgium |
De Coninck,J. Organic-walled phytoplankton biostratigraphy of the Eocene - Oligocene transition in the Kallo Borehole and the Rupelian stratotype area (northwestern Belgium). |
1999 |