| original |
Late Sabinian |
Claiborne |
USA(Gulf Coast) |
Frederiksen,N.O. Sporomorph biostratigraphy, floral changes, and paleoclimatology, Eocene and Earliest Oligocene of the eastern Gulf Coast. |
1988 |
| details |
Lutetian |
|
California |
Frederiksen,N.O. Eocene sporomorph biostratigraphy of Southern California |
1989 |
| details |
Early Oligocene |
|
Alabama |
Oboh,F.E. et al. Early Oligocene palynosequences in the eastern Gulf Coast, USA. |
1994 |
| details |
Early Oligocene |
|
Mississippi |
Oboh,F.E. et al. Early Oligocene palynosequences in the eastern Gulf Coast, USA. |
1994 |
| details |
Rupelian |
|
Mississippi |
Oboh,F.E. et al. Correlation between Sequoia type pollen and Lower Oligocene transgressive deposits in the eastern Gulf Coast. |
1995 |
| details |
Rupelian |
|
Alabama |
Oboh,F.E. et al. Correlation between Sequoia type pollen and Lower Oligocene transgressive deposits in the eastern Gulf Coast. |
1995 |
| details |
Late Cretaceous |
Tertiary |
Nd |
Frederiksen,N.O. Uppermost Cretaceous and Tertiary spores/Pollen biostratigraphy. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |