| 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 |
Maastrichtian |
|
Colombia |
Barriga,C.G. Palynological investigation of the Guaduas Formation of the Guacheta-Lenguazaque-Tausa Anticline |
1958 |
| details |
Maastrichtian |
|
Nigeria |
Hoeken-Klinkenberg,P.M.Van A palynological investigation of some Upper Cretaceous sediments in Nigeria. |
1964 |
| details |
Late Senonian |
|
Brazil(Alagoas) |
Herngreen,G.F.W. An Upper Senonian pollen assemblage of Borehole 3-PIA-10-AL, State of Alagoas, Brazil. |
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 |