| original |
Cenomanian |
Late Cretaceous |
China(Kansu) |
Hsм,J. et al. Microflora and geological age of the uppermost part of the Lower Basin of Western Huihuipou Formation of the Chiuchuanbasin of Western Kansu. |
1956 |
| original |
Jurassic |
|
China(Shansi) |
Peking,I.C.G. Atlas of the Jurassic spore-pollen from the Tatung Coal Field. |
1959 |
| original |
Liassic |
|
USSR(Kazakh SSR) |
Kovalchuk,G.M. Paleobotanical characteristics of Lower Mesozoic deposits of the Karagandinsk Basin. (In: History of Lower Mesozoic Coal Accumulation in Kazakhstan: Part 2.) |
1961 |
| original |
Late Triassic |
Early Jurassic |
USSR(Kazakh SSR) |
Kovalchuk,G.M. Paleobotanical charateristics of Lower Mesozoic deposits of Alakul'sk Seam. (In: History of Lower Mesozoic Coal Accumulation in Kazakhstan: Part 2.) |
1961 |
| original |
Middle Jurassic |
|
China(Honan) |
Zhang,L.C. Pollen assemblages and their significance in the Yima Coal-bearing series from Yinchi Hsien, Honan Province. |
1965 |