| original |
Late Maestrichtian |
|
Colombia |
Hammen,T.Van Der et al. The development of the Colombian flora through geological period I: Maestrichtian to Lower Tertiary. |
1954 |
| details |
Paleocene |
|
Colombia |
Barriga,C.G. Palynological investigation of the Guaduas Formation of the Guacheta-Lenguazaque-Tausa Anticline |
1958 |
| details |
Paleocene |
|
Nigeria |
Adegoke,O.S. et al. Palynology and age of the Kerri-Kerri Formation, Nigeria. |
1978 |
| details |
Late Maastrichtian |
|
Nigeria |
Jan du ChЄne,R.E. Palynological study of the Tar Sand, Upper Maestrichtian of the southwest Nigeria. |
1979 |
| details |
Paleocene |
|
Nigeria |
Kogbe,C.A. Attempt to correlate the stratigraphic sequence in the Middle Benue Basin with those of the Anambra and Upper Benue Basin |
1981 |