| original |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Jiabo On the Paleogene dinoflagellates and acritarchs from the Coastal Region of Bohai. |
1978 |
| details |
Nd |
|
China(E.China) |
Wang,K. et al. Palynological assemblages of crude oil from the oil fields in East China and the research of the oil source. |
1986 |
| details |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Chen,Y.Y. et al. Fossil dinoflagellate taxa by Chinese authors, 1978-1984 |
1988 |
| details |
Early Oligocene |
Middle 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 |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |