| original |
Cenomanian |
|
Canada(Saskatchewan) |
Davey,R.J. Non-calcareous microplankton from the Cenomanian of England, Northern France and North America. Part 2. |
1970 |
| details |
Cenomanian |
|
Canada(Saskatchewan) |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Maastrichtian |
Danian |
Spain |
De Coninck,J. et al. Marine organic-walled microfossils at the Cretaceous - Tertiary Boundary in the Barranco del Gredero, (southest Spain). |
1982 |
| details |
Cenomanian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |