| original |
Jackson |
Vicksburg |
Mississippi |
Frederiksen,N.O. Stratigraphy and palynology of the Jackson Stage (Upper Eocene), and adjacent strata of Mississippi and Western Alabama. |
1967 |
| original |
Jackson |
Vicksburg |
Alabama |
Frederiksen,N.O. Stratigraphy and palynology of the Jackson Stage (Upper Eocene), and adjacent strata of Mississippi and Western Alabama. |
1967 |
| 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 |
Lutetian |
|
California |
Frederiksen,N.O. Middle Eocene palynomorphs from San Diego, California. Part II: Angiosperm pollen and miscellanea. |
1983 |
| details |
Middle Eocene |
|
Cuba |
Graham,A. et al. Studies in Neotropical paleobotany. XIV. A palynofloral from the Middle Eocene Saramaguacan Formation of Cuba. |
2000 |