| details |
Middle Ordovician |
|
USSR(Russian Platform) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Early Devonian |
|
China(Szechwan) |
Xiang,L. et al. Early Devonian graptolite-bearing formation and its paleontological features at Baoxing County, Sichuan, (Szechwan). |
1975 |
| details |
Middle Proterozoic |
|
China(Hopei) |
Yan,Y. Preliminary research on microflora from Chuanlinggou Formation of changcheng system in Jixian County |
1985 |
| details |
Proterozoic |
|
China(Inner Mongolia) |
Sun,S. et al. Palaeoproterozoic eucaryotic fossils from north China. |
2000 |