| original |
Late Oligocene |
Early Miocene |
Colombia |
Dueбas-Jimenez,H. Study of the palynology of well Pozo Qe-22, Late Oligocene and Early Miocene, Planeta Rica, northern Columbia. |
1979 |
| original |
Late Oligocene |
Early Miocene |
Colombia |
Dueбas-Jimenez,H. Palynology of Oligocene-Miocene strata of borehole Q-E-22, Planeta Rica, northern Colombia. |
1980 |
| details |
Oligocene |
Early Miocene |
Colombia |
Dueбas-Jimenez,H. Geology and palynology of the Cienaga de Oro Formation, Caribe Region, Columbia. |
1986 |
| details |
Oligocene |
Late Neogene |
South America |
Muller,J. et al. A palynological zonation for the Cretaceous, Tertiary and Quaternary of northern South America. |
1987 |
| details |
Eocene |
Middle Miocene |
Venezuela |
Rull,V. Oligo-Miocene palynology of the Rio Chama sequence (Western Venezuela), with comments of fossil algae as paleoenvironmental indicators |
1997 |