| original |
Maastrichtian |
|
Colombia |
Sanroma,N.S. Spore-pollen study of the Guaduas Formation (Maestrichtian-Paleocene) in the Sabana de Bogota (Colombia). |
1970 |
| original |
Maastrichtian |
|
Colombia |
Sol© de Porta,N. Some new genera of pollen from the Guaduas Formation, (Maastrichtian - Paleocene), of Colombia. |
1971 |
| details |
Maastrichtian |
|
Colombia |
Sol© de Porta,N. Palynology of the Cimarrona Formation (Maaestrichtian) in the South of the Middle Valley of the Magdalena, Colombia. |
1972 |
| details |
Maastrichtian |
Paleocene |
Colombia |
Potonie,R. Synopsis of the genera of the sporae dispersae.Part 7 |
1975 |
| details |
Maastrichtian |
|
Colombia |
Dueбas-Jimenez,H. Palynological associations from the Colon and Molino Formations of Northeastern Colombia. (In: Paleobotanica e Palinologia na America do Sul; 1987. M.E.E.B. Oliveira-Babinski et al, editors) |
1989 |
| details |
Early Maastrichtian |
|
Colombia |
Guillande,R. et al. Discovery of a Lower Maestrichtian Continental microflora in the eastern Cordillera of Columbia; geodynamical consequences |
1990 |