original |
Middle Albian |
Early Cenomanian |
Maryland |
Doyle,J.A. Palynostratigraphic zonation. (In: New data bearing on the structural significance of the Upper Chesapeake Bay magnetic anomaly. J.Edwards and H.J. Hansen) |
1979 |
original |
Aptian |
|
Egypt |
Schrank,E. Scanning electron and light microscopic investigations of angiosperm pollen from the Lower Cretaceous of Egypt. |
1983 |
original |
Aptian |
|
Egypt |
Schrank,E. Scanning electron and light microscopic investigations of angiosperm pollen from the Lower Cretaceous of Egypt. |
1983 |