| original |
Barremian |
|
|
Gamerro,J.C. Megaspores of the Cretaceous of Patagonia Ii. megaspores in the La Amarga Formation, Lower Cretaceous, Neuqu©n Provence |
1975 |
| details |
Aptian |
Aptian |
South America |
Riccardi,A.C. The Cretaceous System of southern South America. |
1988 |
| details |
Barremian |
|
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Barremian |
|
Argentina |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Late Campanian |
Early Maestrichtian |
Argentina(Santa Cruz) |
Baldoni,A.M. et al. Cretaceous megaspores from two boreholes in the Austral Basin, Santa Cruz Province, Argentina, and their stratigrapahic and palaeoenvironmental significance. |
1997 |