| 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 |
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 |
Jackson |
|
Texas |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Jackson |
|
Arkansas |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Jackson |
|
Tennessee |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Jackson |
|
Alabama |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Jackson |
|
Georgia |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Jackson |
|
Mississippi |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Maastrichtian |
|
Mexico(Coahuila) |
Martnez-HernЎndez,E. et al. Palynological study for the determination of the environment of the Fuentes-Rio Escondido Basin (Upper Cretaceous), Piedras Negras Region, Coahuila. |
1982 |