| details |
Paleocene |
|
Colombia |
Hammen,T.Van Der et al. Description of some genera and species of fossil pollen and spores. |
1956 |
| details |
Paleocene |
Late Oligocene |
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 |
Paleocene |
|
Colombia |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| 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 |
Late Maastrichtian |
Early Eocene |
Colombia |
Hammen,T.Van Der et al. Paleoclimate, stratigraphy and evolution. |
1964 |
| details |
Maastrichtian |
Paleocene |
Nigeria |
Hammen,T.Van Der et al. Paleoclimate, stratigraphy and evolution. |
1964 |
| details |
Late Maastrichtian |
Paleocene |
British Guiana |
Hammen,T.Van Der et al. A palynological study on the Tertiary and Upper Cretaceous of British Guiana. |
1964 |
| details |
Early Paleocene |
|
British Guiana |
Hammen,T.Van Der et al. A palynological study on the Tertiary and Upper Cretaceous of British Guiana. |
1964 |
| details |
Paleocene |
|
Brazil(Amazonas) |
de Boer,N.P. et al. A palynological study on the age of some borehole samples from the Amazonas Delta area, northwest Brazil. |
1965 |
| details |
Maastrichtian |
Paleocene |
Brazil(Amazonas) |
de Boer,N.P. et al. A palynological study on the age of some borehole samples from the Amazonas Delta area, northwest Brazil. |
1965 |
| details |
Paleocene |
|
Nigeria |
Hoeken-Klinkenberg,P.M.Van Maastrichtian Paleocene and Eocene pollen spores from Nigeria. |
1966 |
| details |
Paleocene |
|
Colombia |
Hammen,T.Van Der et al. The Paleocene pollen flora of Columbia. |
1966 |
| details |
Maastrichtian |
|
Senegal |
Kieser,G. Some particular palynological aspects of the Upper Cretaceous of Senegal |
1967 |
| details |
Early Eocene |
|
France(Tarn) |
Combaz,A. et al. First inventory of the microbiota of a Prelutetian continental series of Castres. |
1967 |