original |
Late Barremian |
|
Austria |
Corna,O. Palynological study and nannofossils. (In: Study of the Lower Cretaceous of the Vienna Woods. Grun et al) |
1972 |
original |
Barremian |
|
Austria |
Gruen,W. et al. Studies in the Lower Cretaceous of the Vienna Woods. |
1972 |
original |
Albian |
|
Canada(Alberta) |
Brideaux,W.W. Palynology of the Lower Colorado Group (Late Lower Cretaceous) and its lithological equivalents in central and west-central Alberta, Canada. |
1968 |
original |
Early Berriasian |
|
E.Germany |
Dжring,H. The stratigraphic classification of spores from the Lower Cretaceous of northern Central Europe. |
1966 |
original |
Wealden |
|
France(Nord) |
Levet-Carrette,J. Wealdian microflora Coming from a natural Pit in the Vieux-Conde Shaft: (Valencienne Group). |
1966 |
original |
Aptian |
Albian |
South Dakota |
Cahoon,E.J. Lower Cretaceous pollen and spores from the Southern Black Hills |
1965 |
original |
Early Cretaceous |
|
Wyoming |
Davis,P.N. Palynology and stratigraphy of the Lower Cretaceous rocks of northern Wyoming |
1963 |