| details |
Miocene |
|
Colombia |
Sol© de Porta,N. Contribution to the palynological study of the Tertiary in Colombia. |
1961 |
| 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 |
Eocene |
Colombia |
de Porta,J. Stratigraphic Lexicon. Colombia:(Part Two). Tertiary and Quaternary. |
1974 |
| original |
Late Miocene |
|
Ethiopia |
Yemane,K. et al. Pollen and clay mineral assemblages of a Late Miocene lacustrine sequence. |
1987 |
| details |
Middle Bartonian |
|
Spain |
Gruas-Cavagnetto,C. et al. A mangrove complex of the Bartonian of the Ebro Basin (NE.Spain). |
1995 |