| details |
Maastrichtian |
|
USSR(WSL) |
Grigoreva,K.N. Spore-pollen assemblages of Maestrichtian deposits of the Western Siberian Lowland. |
1966 |
| details |
Middle Triassic |
Late Triassic |
USSR(Yakut ASSR) |
Petrova,L.D. et al. Palynological characteristics of Gas-bearing Triassic deposits of the Vilyuysk Syncline. |
1980 |
| details |
Early Triassic |
|
USSR(Yakut ASSR) |
Skripina,G.F. Characteristics of palynological assemblages of Lower Triassic Gas-bearing deposits of Central Yakut. |
1981 |
| details |
Frasnian |
|
Wales |
Richardson,J.B. Devonian spores. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |