| original |
Early Eocene |
|
Arkansas |
Jones,E.L. Plant microfossils of the Laminated sediments of the Lower Eocene Wilcox Group in South-Central Arkansas. |
1961 |
| original |
Oligocene |
Miocene |
USSR(Azerbaijan SSR) |
Dzhabarova,K.S. Flora and vegetation of Western Azerbaijan during the Upper Miocene. |
1967 |
| original |
Early Oligocene |
|
Canada(British Columbia) |
Piel,K.M. Palynology of Oligocene sediments from Central British Columbia |
1971 |
| original |
Miocene |
Pleistocene |
China(Kiangsu) |
Zheng,Y.-H. et al. Neogene sporo-pollen grains from northern Jiangsu and South Yellow Sea Basin. |
1981 |
| original |
Miocene |
|
China(Shantung) |
Wang,X.-Z. Palynofloral in the Diatomaceous Shale of the Shanwang Formation, Shandong, and its palaeoenvironment. |
1991 |