| original |
Early Oligocene |
Middle Oligocene |
China(Hopei) |
Jiabo On the Paleogene dinoflagellates and acritarchs from the Coastal Region of Bohai. |
1978 |
| details |
Early Eocene |
Oligocene |
China(Kwangsi) |
He,C.-Q. et al. Early Tertiary dinoflagellates and acritarchs from the Bose Basin of Guangxi (Kwangsi) |
1979 |
| details |
Eocene |
Early Miocene |
China(Kwangsi) |
He,C.-Q. Tertiary dinoflagellates and acritarchs from the coastal region of the Beibu Gulf. |
1984 |
| details |
Early Oligocene |
Middle Oligocene |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Maestrichtian |
|
Pacific Ocean(Yellow Sea) |
Yi,S. Zygnematacean zygospores and other freshwater algae from the Upper Cretaceous of the Yellow Sea Basin, Southwest coast of Korea |
1997 |