| details |
Early Oligocene |
|
Spain |
Gruas-Cavagnetto,C. et al. Preliminary palynological data on floristic and climatic changes during the Middle Eocene-Early Oligocene of the eastern Ebro Basin, Northeast Spain |
1996 |
| details |
Oligocene |
Pleistocene |
Nd |
Muller,J. Significance of fossil pollen for angiosperm history. (In: Historical Perspectives of Angiosperm Evolution.) |
1984 |
| details |
Early Miocene |
Middle Miocene |
USA(Pacific Northwest) |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| details |
Early Pliocene |
Middle Pliocene |
Japan(Honshu I.) |
Shimakura,M. Pollen stratigraphic studies of Japanese Cenozoic formation VIII Ange, Soni and Tsugena Groups (Tertiary). |
1964 |
| details |
Senonian |
Paleocene |
Nigeria |
Puri,G.S. The Geobotanical indications of some plant fossils from Nigeria and other Regions |
1963 |