| original |
Cenomanian |
Maastrichtian |
USSR(Kazakh SSR) |
Romanovskaya,G.M. et al. Short description of spores and pollen from Upper Cretaceous deposits of the Turgay Basin. (In: Atlas of Upper Cretaceous, Paleocene and Eocene spore-pollen complexes of various Regions of the USSR). |
1960 |
| original |
Middle Eocene |
|
USSR(Pre-Baltic) |
Zauer,V.V. Short description of spores and pollen from Eocene and Lower Oligocene deposits of the Prebaltic. (In: Atlas of Upper Cretaceous, Paleocene and Eocene spore-pollen complexes of various Regions of the USSR). |
1960 |
| original |
Early Eocene |
|
Arkansas |
Jones,E.L. Plant microfossils of the Laminated sediments of the Lower Eocene Wilcox Group in South-Central Arkansas. |
1961 |
| original |
Turonian |
|
France(Ardeche) |
Robaszynski,F. et al. The Turonian of the type region. |
1982 |
| original |
Early Maastrichtian |
|
Netherlands |
Robaszynski,F. et al. The Campanian-Maestrichtian boundary in the chalky facies close to the type-Maestrichtian area. |
1985 |