| details |
Early Eocene |
Oligocene |
China(Kwangsi) |
He,C.-Q. et al. Early Tertiary dinoflagellates and acritarchs from the Bose Basin of Guangxi (Kwangsi) |
1979 |
| details |
Early Tertiary |
|
China(Kiangsu) |
Chu,H.-J. et al. Fossil Pediastrum algae from the Dainan Formation, (Lower Tertiary), of northern Jiangsu with note on their sedimentary conditions. |
1978 |
| details |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Jiabo On the Paleogene dinoflagellates and acritarchs from the Coastal Region of Bohai. |
1978 |
| details |
Middle Miocene |
|
Oregon |
Gray,J. Fossil Chlorophycean algae from the Miocene of Oregon. |
1960 |