| details |
Miocene |
|
Mexico |
Graham,A. Some aspects of Tertiary vegetational history about the Caribbean Basin |
1972 |
| details |
Late Miocene |
|
Mexico(Veracruz) |
Graham,A. Late Cenozoic evolution of Tropical Lowland vegetation in Veracruz, Mexico. |
1976 |
| details |
Early Pliocene |
|
Canada(Arctic) |
White,J.M. Palynostratigraphy of the Esso et al., Issungnak 0-61 Well, Beaufort Sea. |
1989 |
| details |
Early Miocene |
|
Costa Rica |
Graham,A. Paleofloristic and paleoclimatic changes in the Tertiary of northern Latin America |
1989 |
| details |
Early Miocene |
|
Mexico(Chiapas) |
Graham,A. Lower Miocene floras and biogeography of Central America |
1989 |
| details |
Early Miocene |
|
Costa Rica |
Graham,A. Lower Miocene floras and biogeography of Central America |
1989 |
| details |
Early Miocene |
|
Panama |
Graham,A. Lower Miocene floras and biogeography of Central America |
1989 |
| details |
Nd |
|
Nd |
Playford,G. et al. Spores. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |