| original |
Early Eocene |
Middle Eocene |
Colombia |
Gonzalez-Guzman,A.E. A palynological study on the Upper Los Cuervos and Mirador Formations (Lower and Middle Eocene;Tibu area, Colombia) |
1967 |
| details |
Paleocene |
Middle Eocene |
Colombia |
de Porta,J. Stratigraphic Lexicon. Colombia:(Part Two). Tertiary and Quaternary. |
1974 |
| details |
Late Oligocene |
|
Brazil(Sao Paulo) |
de Lima,M.R. et al. Palynological study of the Lignitic Coal Beds of the Cacapava Formation, Taubate Basin, of the Tertiary of the State of Sao Paulo, Brazil. |
1985 |
| details |
Late Oligocene |
Early Miocene |
Nigeria |
Takahashi,K. et al. Palynology of Middle Tertiary lacustrine deposits from the Jos Plateau, Nigeria. |
1989 |