| details |
Early Devonian |
|
USSR(Bashkir ASSR) |
Chepikova,I.K. Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region. |
1971 |
| details |
Late Riphean |
|
USSR(Urals) |
Kiryanov,V.V. et al. New data on the geological structure of Riphean deposits of the Pre-Urals. |
1975 |
| details |
Silurian |
Early Devonian |
USSR(Permsk Oblast) |
Lagutenkova,N.S. et al. New data on Old rocks in the Yaborovskaya area in the northeastern part of the Perm Oblast |
1977 |
| details |
Vendian |
|
USSR(Permsk Oblast) |
Lagutenkova,N.S. et al. Separation of Lower Paleozoic deposits in the northeastern Perm District. (In: Voprosy biostratigrafii i Paleogeografii Neftegazonosnykh Oblastei SSSR.) |
1977 |
| details |
Middle Riphean |
Late Riphean |
USSR(Bashkir ASSR) |
Andreev,Y.V. et al. Stratigraphy of the Upper Proterozoic of the Russian Plate and the Western Slope of South Urals |
1981 |
| details |
Riphean |
|
USSR(Komi ASSR) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Llanvirnian |
Baoto |
China(Szechwan) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Llanvirnian |
Baoto |
China(Shansi) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |