| details |
Paleogene |
|
China(Hupei) |
Wang,K.F. et al. Palynological assemblages of the crude oil from the Buried Hills of China and the research of the oil source |
1985 |
| details |
Middle Eocene |
Oligocene |
China(Liaoning) |
Ke et al. Early Tertiary spores and pollen grains from the Coastal Region of Bohai |
1978 |
| details |
Early Tertiary |
|
China(Shantung) |
Wang,K.-F. et al. A study on the algal assemblages of crude oil from Buried Hill and the source Bed of oil in China |
1986 |
| details |
Maestrichtian |
Late Eocene |
China(S.China) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 1: The Late Cretaceous and Tertiary Spores and Pollen. |
1999 |