| details |
Early Cenomanian |
Middle Cenomanian |
Russia(Urals) |
Amon,E.O. et al. An essay on regional geology and stratigraphy of the Upper Cretaceous deposits of southern Urals Territories. |
1997 |
| details |
Late Albian |
Cenomanian |
Peru |
Alverez,P.E. Palynological study of the Chonta Formation in the Ocho Block. |
1979 |
| details |
Late Albian |
Cenomanian |
Peru |
Alverez,P.E. Palynological study of the Chonta Formation in the Ocho Block. |
1979 |
| details |
Nd |
|
Nd |
Bolkhovitina,N.A. Nomenclature and classification of fossil pollen and spores. |
1973 |