| details |
Early Cambrian |
|
USSR(European) |
Mens,K.A. Detailing of the Lower Cambrian stratigraphical Scheme for the East European Platform. (In: Vendian and Cambrian Facies and Stratigraphy of the Western Part of East European Platform. E.A.Pirrus, editor) |
1986 |
| details |
Early Cambrian |
|
China(Szechwan) |
Wang,F. et al. Spiniferous acritarchs from the Lowest Cambrian, Emei, Sichuan, southwestern China. |
1987 |
| details |
Early Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |