| details |
Devonian |
Permian |
USSR(Yaroslav) |
Medvedeva,A.M. et al. Study of acritarchae from oils and rocks of the Volga-Ural Regions by replica method. (In: Sporen and Pollen in Oils and Deposits of Oil and Gas-Bearing Regions of the USSR.) |
1971 |
| details |
Sinian |
|
China(SW.China) |
Yin,L. et al. Pre-Cambrian microfloras of Southwest China, with reference to their stratigraphical significance. |
1978 |
| details |
Sinian |
|
China |
Cao,J. et al. The Sinian System in Southwest China. (In: Paleontology and stratigraphy of Carbonate rocks in the Southwestern Region of China) |
1979 |
| details |
Late Proterozoic |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |