| 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 |
| details |
Early Cambrian |
|
China(Hopei) |
Ding,L.-F. et al. Discovery of Micrhystridium regulare from Sinian-Cambrian strata in Yichang, Hubei and its stratigraphic significance |
1992 |
| details |
Middle Jurassic |
|
USSR(Kazakh SSR) |
Medvedeva,A.M. et al. Direct evidence for vertical oil migration in the eastern Precaspian. |
1993 |
| details |
Middle Riphean |
|
USSR(Penza) |
Shenfil,V.Y. et al. Stratigraphy of Riphean deposits in the Yurubchenko-Tokhoma Zon of oil accumulation in the Baikit Anteclise |
1996 |