| original |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Sun,X. Paleogene dinoflagellate cysts form the Liaohe Depression, North East China |
1994 |
| details |
Late Eocene |
|
China(Hupei) |
He,C. et al. Tianjinella, a new dinoflagellate genus from the Eocene of Southern Tianjin, China. |
1996 |
| 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 |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |