| original |
Middle Eocene |
Late Eocene |
Mississippi |
Frederiksen,N.O. New Mid-Tertiary spores and pollen grains from Mississippi and Alabama |
1973 |
| original |
Middle Eocene |
Late Eocene |
Alabama |
Frederiksen,N.O. New Mid-Tertiary spores and pollen grains from Mississippi and Alabama |
1973 |
| details |
Middle Tertiary |
|
Mississippi |
Potonie,R. Examples of the natural system of spores, a supplement to the synopsis of the Sporae in situ, 1963 and the research reports from 1965,1967, and 1970 and to the phylogenetic sporolog 1973 |
1975 |
| 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 |
Late Maastrichtian |
|
USSR(Sakhalin Oblast) |
Kalishevich,T.G. et al. Organic development at the Mesozoic-Cenozoic boundary in the Pacific Ocean zone. |
1981 |
| details |
Early Oligocene |
|
Atlantic Ocean |
Brattseva,G.M. Spores and pollen from Cenozoic sediments of the Falkland Plateau, Site 511, Deep Sea Drilling Project Leg 71. |
1983 |
| details |
Late Eocene |
Early Oligocene |
Canada(Yukon) |
Long,D.G.F. et al. Age and depositional environment of the rock River Coal Basin, Yukon Territory, Canada. |
1994 |
| details |
Early Oligocene |
|
Mississippi |
Oboh,F.E. et al. Early Oligocene palynosequences in the eastern Gulf Coast, USA. |
1994 |
| details |
Early Oligocene |
|
Alabama |
Oboh,F.E. et al. Early Oligocene palynosequences in the eastern Gulf Coast, USA. |
1994 |