| original |
Maestrichtian |
Eocene |
Alaska(North Slope) |
Frederiksen,N.O. et al. Palynological dating of Upper Cretaceous to Middle Eocene strata in the Sagavanirktok and Canning Formation, North Slope of Alaska. |
1998 |
| original |
Late Turonian |
Coniacian |
Atlantic Ocean(East) |
Oboh-Ikuenobe,F.E. et al. Palynostratigraphy, palynofacies, and thermal maturation of Cretaceous - Paleocene sediments from the Cote D'Ivoire-Ghana Transform Margin. |
1998 |
| original |
Aptian |
Albian |
China(Kansu) |
Wang,X. The study on the Late Mesozoic sporopollen of Mazongshan Region, Gansu, China. |
2000 |
| original |
Early Eocene |
Middle Eocene |
Alaska(North Slope) |
Frederiksen,N.O. et al. Palynology of Eocene strata in the Sagavanirktok and Canning Formations on the North Slope of Alaska. |
2002 |
| details |
Maestrichtian |
|
Romania |
Itterbeeck,J. Van et al. Palynostratigraphy of the Maastrichtian dinosaur- andmammal sites of the Rўul Mare and Barbat Valleys(Haоeg Basin, Romania). |
2005 |