| original |
Maestrichtian |
Paleocene |
Colombia |
Hammen,T.Van Der et al. The development of the Colombian flora through geological period I: Maestrichtian to Lower Tertiary. |
1954 |
| original |
Maestrichtian |
Paleocene |
Colombia |
Hammen,T.Van Der et al. The development of the Colombian flora through geological period I: Maestrichtian to Lower Tertiary. |
1954 |
| details |
Maastrichtian |
Early Paleocene |
British Guiana |
Hammen,T.Van Der et al. A palynological study on the Tertiary and Upper Cretaceous of British Guiana. |
1964 |
| details |
Miocene |
|
Ecuador |
Putzer,H.Von. Tertiary Lignite in the Interandine Graben of Ecuador as an example of Syn-Orogenous Coal Formation in intramontane Depressions |
1968 |
| details |
Aptian |
Albian |
Uruguay |
Sprechmann,P. et al. Jurassic and Cretaceous Basins of Uruguay. (In: Sedimentary Basins of the Jurassic and Cretaceous of South America. W.Volkheimer and E.Musacchio, editors) |
1981 |