| original |
Early Pliocene |
Middle Pliocene |
Canada(Arctic) |
Aksu,A.E. et al. Magnetostratigraphy and palynology Demonstrate at Least 4 Million years of Arctic sedimentation |
1985 |
| original |
Santonian |
Maastrichtian |
USSR(Yamalo-Nenets) |
Bondarenko,N.M. Palynological basis of stratigraphic differential on of Upper Cretaceous deposits discovered in bore holes from drill cores of the Ob Bay District. (In: Paleontology and Biostratigraphy of the Soviet Arctic. #2. N.A.Shvedov, editor) |
1961 |
| original |
Early Tertiary |
|
Japan(Honshu I.) |
Tokunaga,S. Palynological study on Japanese Coal. 1. method of pollenanalysis on Japanese Coal. |
1958 |