| original |
Early Oligocene |
Middle Oligocene |
Colombia |
Hammen,T.Van Der et al. Description of some genera and species of fossil pollen and spores. |
1956 |
| details |
Paleocene |
Early Miocene |
Colombia |
Hammen,T.Van Der et al. Climatic periodicity and evolution of South American Maestrichtian and Tertiary floras. A study based on pollen anaylsis in Colombia. |
1957 |
| details |
Maastrichtian |
Middle Oligocene |
Colombia |
Hammen,T.Van Der et al. Palynological stratigraphy of the Sabana of Bogota (East Cordillerian of Colombia). |
1957 |
| details |
Late Eocene |
Oligocene |
Colombia |
Sol© de Porta,N. Presence of Tythodiscus Norem in Colombia. |
1959 |
| details |
Paleocene |
|
Guianas |
Hammen,T.Van Der et al. Paleocene sediments in British Guiana and Surinam. |
1961 |
| details |
Paleocene |
|
Surinam |
Hammen,T.Van Der et al. Paleocene sediments in British Guiana and Surinam. |
1961 |
| details |
Paleocene |
Early Eocene |
Colombia |
Hammen,T.Van Der et al. Paleoclimate, stratigraphy and evolution. |
1964 |
| details |
Maastrichtian |
|
Senegal |
Kieser,G. Some particular palynological aspects of the Upper Cretaceous of Senegal |
1967 |
| details |
Paleocene |
|
British Guiana |
Penny,J.S. Late Cretaceous and Early Tertiary palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Paleocene |
|
Colombia |
Penny,J.S. Late Cretaceous and Early Tertiary palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Paleocene |
|
Africa |
Muller,J. Reflections of fossil Palm pollen. |
1979 |
| details |
Paleocene |
|
Senegal |
M©dus,J. Restionales pollen in Paleocene sediments of Senegal. |
1982 |
| details |
Maastrichtian |
|
Egypt |
Mohsen,S.A. Palynological studies of the Lower Esna Shale Formation, (Cretaceous) in the Tushka Basin, Southern Egypt. |
1987 |