| details |
Jackson |
|
USA(Gulf of Mexico) |
Frederiksen,N.O. Affinities of Late Eocene spores and pollen grains from southeastern North America. |
1977 |
| details |
Eocene |
Oligocene |
South Carolina |
Frederiksen,N.O. Paleogene sporomorphs from South Carolina and quantitative correlations with the Gulf Coast. |
1980 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(WSL) |
Shakhmundes,V.A. New Ephedra L.Species of Paleogene deposits in North Western Siberia |
1965 |
| 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 |
Early Miocene |
|
USSR(Tadzhik SSR) |
Penkova,A.M. The distribution of the pollen of Ephedra in the Upper Paleogene and Neogene deposits of the South-Western Tadjikistan. |
1973 |
| details |
Claiborne |
Early Vicksburg |
USA(Gulf Coast) |
Frederiksen,N.O. Sporomorph biostratigraphy, floral changes, and paleoclimatology, Eocene and Earliest Oligocene of the eastern Gulf Coast. |
1988 |