original |
Early Danian |
|
Alabama |
Moshkovitz,S. et al. Calcareous nannofossil and dinoflagellate stratigraphy of the Cretaceous-Tertiary boundary, Alabama and Georgia |
1993 |
original |
Early Cretaceous |
|
|
Volkheimer,W. et al. Stratigraphic distribution of Jurassic and Cretaceous palynomorphs in the Andean Realm and neighbouring areas of Southern South America, with special consideration of the Neuqu©n Basin. |
1981 |
original |
Hauterivian |
Barremian |
|
Quattrocchio,M.E. Dinoflagellate cysts from the Jurassic and Lower Cretaceous of the Neuqu©n Basin |
1986 |