| original |
Middle Eocene |
Early Oligocene |
Alabama |
Frederiksen,N.O. New Mid-Tertiary spores and pollen grains from Mississippi and Alabama |
1973 |
| original |
Middle Eocene |
Early Oligocene |
Mississippi |
Frederiksen,N.O. New Mid-Tertiary spores and pollen grains from Mississippi and Alabama |
1973 |
| details |
Eocene |
Oligocene |
USA(Pacific Northwest) |
Elsik,W.C. Nothofagus in North America. |
1974 |
| details |
Eocene |
Oligocene |
USA(Gulf of Mexico) |
Elsik,W.C. Nothofagus in North America. |
1974 |
| details |
Jackson |
|
USA(Gulf of Mexico) |
Frederiksen,N.O. Affinities of Late Eocene spores and pollen grains from southeastern North America. |
1977 |
| details |
Middle Eocene |
Early Oligocene |
Mississippi |
Frederiksen,N.O. Sporomorphs from the Jackson Group, (Upper Eocene) and adjacent strata of Mississippi and western Alabama. |
1980 |
| details |
Middle Eocene |
Early Oligocene |
Alabama |
Frederiksen,N.O. Sporomorphs from the Jackson Group, (Upper Eocene) and adjacent strata of Mississippi and western Alabama. |
1980 |
| details |
Eocene |
|
Brazil(Sao Paulo) |
de Lima,M.R. et al. Palynology of the Bonfim Basin, Tertiary of the State of Sao Paulo, Brazil. |
1984 |