| 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 |
|
USA(Gulf of Mexico) |
Frederiksen,N.O. Affinities of Late Eocene spores and pollen grains from southeastern North America. |
1977 |
| original |
Middle Jurassic |
|
USSR(Kazakh SSR) |
Frederiksen,N.O. Stratigraphy and palynology of the Jackson Stage (Upper Eocene), and adjacent strata of Mississippi and Western Alabama. |
1967 |
| original |
Middle Jurassic |
|
USSR(Kazakh SSR) |
Frederiksen,N.O. Stratigraphy and palynology of the Jackson Stage (Upper Eocene), and adjacent strata of Mississippi and Western Alabama. |
1967 |
| details |
Late Neogene |
|
China |
Chen,L. et al. Cenozoic spore-pollen. (In: Palaeontological Atlas of Southwest China, Volume of Microfossils. Edited by Chengdu Institute of Geology and Mineral Resources.) |
1983 |
| original |
Middle Jurassic |
|
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |
| details |
Eocene |
Early Oligocene |
USSR |
Aristova,K.E. Pollen and microplankton from the Eocene-Oligocene boundary deposits in the Southern Part of the USSR |
1973 |
| details |
Middle Miocene |
Middle Sarmatian |
USSR(Ukrainian SSR) |
Agulov,A.P. Spore and pollen complexes of Middle and Upper Miocene deposits North of the Black Sea Basin |
1970 |