| details |
Lutetian |
|
Wyoming |
Leopold,E.B. Pollen and spores of the Kisinger Lakes fossil Leaf locality. (In: An Early Middle Eocene flora from the Yellowstone-Absaroka Volcanic Province Northwestern Wind River Basin, Wyoming. H.D. MacGinitie et al) |
1974 |
| details |
Late Miocene |
|
Mexico(Veracruz) |
Graham,A. Late Cenozoic evolution of Tropical Lowland vegetation in Veracruz, Mexico. |
1976 |
| details |
Miocene |
Pliocene |
Mexico |
Graham,A. Contribution toward a Tertiary palynostratigraphy for Jamaica; The status of Tertiary paleobotanical studies in northern Latin America and preliminary analysis of the Guys Hill Member (Chapelton Formation, Middle Eocene) of Jamaica. (In: Biostratigraphy of Jamaica. R.M. Wright and E. Robinson, editors) |
1993 |
| details |
Pliocene |
|
Mexico(Veracruz) |
Graham,A. Terrestrial Pliocene climates in northern Latin America |
1999 |