| details |
Miocene |
|
Colombia |
Sol© de Porta,N. Contribution to the palynological study of the Tertiary in Colombia. |
1961 |
| details |
Miocene |
|
Colombia |
Sol© de Porta,N. Spore-pollen association found in a series belonging to the Cira Formation in the Magdalena Valley (Colombia). |
1963 |
| details |
Oligocene |
|
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 |
Miocene |
Colombia |
de Porta,J. Stratigraphic Lexicon. Colombia:(Part Two). Tertiary and Quaternary. |
1974 |