| details |
Aptian |
Albian |
England |
Batten,D.J. Aptian and Albian palynomorph assemblages from Southern England |
1976 |
| details |
Nd |
|
Nd |
Artzner,D.G. et al. A systematic Illustrated guide to fossil organic-walled dinoflagellate Genera. |
1979 |
| details |
Middle Barremian |
Vraconian |
Worldwide |
Arai,M. et al. Characterization of the Vraconian (Uppermost Albian, Lower Cretaceous) in Brazil: A Paleomicroplanktonic contribution |
1996 |
| details |
Middle Barremian |
Aptian |
Europe |
Arai,M. et al. Characterization of the Vraconian (Uppermost Albian, Lower Cretaceous) in Brazil: A Paleomicroplanktonic contribution |
1996 |