| details |
Oligocene |
Miocene |
Mexico(Chiapas) |
Biaggi,R.E. et al. Palynology and paleoecology of sediments from the La Quinta Formation (Oligocene-Miocene), Chiapas, Mexico. |
1977 |
| details |
Early Miocene |
|
Mexico(Chiapas) |
Graham,A. Lower Miocene floras and biogeography of Central America |
1989 |
| details |
Late Neogene |
Pleistocene |
Ethiopia |
Bonnefille,R. Considerations upon the composition of a pollen microflora from the Plio-Pleistocene Formations of the Lower Omo River Valey, (Ethiopia) |
1972 |
| details |
Early Miocene |
|
Costa Rica |
Graham,A. Lower Miocene floras and biogeography of Central America |
1989 |
| details |
Late Eocene |
|
Cameroon |
Crepet,W.L. Advanced (constant) insect pollination mechanisms. Pattern of evolution and implications vis-a-vis angiosperm diversity. |
1984 |