| details |
Middle Paleocene |
Late Paleocene |
China(Tsinghai) |
Zhao,I. et al. The distribution of Normapolles in Northwestern China. |
1981 |
| details |
Paleocene |
Eocene |
China(Tsinghai) |
Sun,X.-Y. et al. Some comments on characteristics of Late Cretaceous-Paleogene sporo-pollen assemblages of the Xining-Minghe Basin and their geological age and significance of paleovegetation and paleoclimatology.I. |
1980 |
| details |
Early Cenomanian |
|
USSR(Siberia) |
Chlonova,A.F. Fundamental stratigraphic events for the type Cretaceous angiosperm pollen. (In: Palynostratigraphy of the Mesozoic and Cainozoic of Siberia. V.S.Volkova and A.F.Khlonova, editors) |
1985 |