| details |
Eocene |
|
Wyoming |
Penny,J.S. Late Cretaceous and Early Tertiary palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Late Montian |
|
Canada(Eastern Offshore) |
Heroux,Y. et al. Thermal evolution and petroleum potential from the study of extracted organic kerogen and gas absorbtion of clay from Drill Hole Karlsefni H-13. |
1981 |
| details |
Early Eocene |
Middle Eocene |
Mexico(Nuevo Leon) |
Martnez-HernЎndez,E. et al. Palynology of the Eocene in the North East of Mexico |
1982 |