| original |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Jiabo On the Paleogene dinoflagellates and acritarchs from the Coastal Region of Bohai. |
1978 |
| details |
Nd |
|
Nd |
Helby,R.J. Muderongia and related dinoflagellates of the Latest Jurassic to Early Cretaceous of Australasia. (In: Studies in Australian Mesozoic Palynology. P.A.Jell, editor.) |
1987 |
| details |
Middle Eocene |
Late Eocene |
China(Shandong) |
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 |