| 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 |
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 Eocene |
Early Oligocene |
Mississippi |
Frederiksen,N.O. Sporomorphs from the Jackson Group, (Upper Eocene) and adjacent strata of Mississippi and western Alabama. |
1980 |
| details |
Late Eocene |
Early Oligocene |
Mississippi |
Frederiksen,N.O. Sporomorphs from the Jackson Group, (Upper Eocene) and adjacent strata of Mississippi and western Alabama. |
1980 |
| details |
Eocene |
|
China(Chekiang) |
Li,M.-Y. Eocene spores and pollen assemblage from Northeastern Zhejiang. |
1980 |
| details |
Paleocene |
|
China(Liaoning) |
Song,Z.-C. et al. Spores and pollen grains from the Sushun Group. |
1980 |
| details |
Tertiary |
|
China(Shansi) |
Sun,X. et al. Cenozoic sporo-pollen assemblage of the Weihi Basin, Shaanxi. |
1980 |
| details |
Mesozoic |
|
China(Hunan) |
Chen,J.-H. et al. On the Mesozoic coal series and its faunas and floras in Southwest Hunan. |
1980 |
| details |
Late Cenomanian |
Campanian |
Spain |
Alvarez Ramis,C. et al. Botanical microfossils of the Upper Cretaceous of Torrelaguna, (Madrid). |
1980 |
| details |
Jurassic |
|
China(Shensi) |
Xu,Y. et al. Spores and pollen (Jurassic). (In: Mesozoic Stratigraphy and Palaeontology of the Shan-Gan-Ning Basin.) |
1980 |
| details |
Late Oligocene |
|
Romania |
Dicea,O. et al. Contributions to the knowledge of the stratigraphy of Maramures Transcarpathian zone |
1980 |
| details |
Early Jurassic |
|
China(Kwangsi) |
Shang,Y.-K. Early Jurassic sporo-pollen assemblages in southwestern Hunan, northeastern Guangxi. |
1981 |
| details |
Hauterivian |
Barremian |
China(Hupei) |
Wang,C.-F. et al. Early Cretaceous sporo-pollen assemblage from Southern Hebei. |
1981 |
| details |
Paleocene |
|
USSR(Sakhalin Oblast) |
Kalishevich,T.G. et al. Organic development at the Mesozoic-Cenozoic boundary in the Pacific Ocean zone. |
1981 |
| details |
Albian |
|
Pacific(Sea of Japan) |
Markevich,V.S. A new species of Classopollis from the Cretaceous of the floor of the Sea of Japan. |
1981 |