| details |
Miocene |
Pliocene |
Panama |
Graham,A. Terrestrial Pliocene climates in northern Latin America |
1999 |
| details |
Eocene |
|
Spitsbergen |
Kvacek,Z. et al. Ferns in the Spitsbergen Palaeogene |
1993 |
| details |
Middle Pliocene |
|
Panama |
Graham,A. Studies in neotropical paleobotany:X. The Pliocene communities of Panama: Composition, numerical representations and paleocommunity paleoenvironmental reconstructions |
1991 |
| details |
Pliocene |
|
Mexico(Veracruz) |
Graham,A. Terrestrial Pliocene climates in northern Latin America |
1999 |