| details |
Valanginian |
|
USSR(WSL) |
Markova,L.G. The history of development of the Early Cretaceous flora from the Western Siberian Lowlands (Based on palynological facts). |
1971 |
| details |
Barremian |
|
USSR(Khabarovsk Kray) |
Shugaevskaya,O.V. et al. Upper Mesozoic spore and pollen assemblages of southern Far East and their significance for stratigraphy. |
1974 |
| details |
Maestrichtian |
|
Romania |
Itterbeeck,J. Van et al. Palynostratigraphy of the Maastrichtian dinosaur- andmammal sites of the Rўul Mare and Barbat Valleys(Haоeg Basin, Romania). |
2005 |