| details |
Middle Oligocene |
|
China(Shantung) |
Zhou,H. Middle Oligocene dinoflagellates and acritarchs from the first Member of the Shahejie Formation in the Dongying Depression of northern Shandong and their paleogeographical significance |
1985 |
| 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 |
| details |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Lentin,J.K. et al. Fossil dinoflagellates: Index to genera and species, 1981 edition. |
1981 |
| original |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Jiabo On the Paleogene dinoflagellates and acritarchs from the Coastal Region of Bohai. |
1978 |
| details |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Jan du ChЄne,R.E. et al. New observations on the dinoflagellate cyst genus Kallosphaeridium de Coninck, 1969. |
1984 |