| details |
Late Eocene |
Oligocene |
China(Hopei) |
Xu,J. et al. On the Paleogene microphytoplankton from the Shengli oil-bearing region, Shandong, China |
1997 |
| details |
Nd |
|
Nd |
Xu,J. et al. On the Paleogene microphytoplankton from the Shengli oil-bearing region, Shandong, China |
1997 |
| details |
Late Eocene |
Early Oligocene |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| original |
Late Eocene |
Late Oligocene |
China(Hopei) |
Jiabo On the Paleogene dinoflagellates and acritarchs from the Coastal Region of Bohai. |
1978 |