| details |
Early Cretaceous |
|
Oklahoma |
Wingate,F.H. Palynology of the Denton Shale (Lower Cretaceous) of Oklahoma. |
1973 |
| details |
Aptian |
Albian |
Alaska |
Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska |
1981 |
| details |
Hauterivian |
Late Aptian |
Maryland |
Wolfe,J.A. et al. Stratigraphic interpretations of some Cretaceous microfossil floras of the Middle Atlantic States. |
1971 |
| details |
Aptian |
Cenomanian |
China(Heilungkiang) |
Wu,H. Sporo-pollen assemblages of Dongshan and Houshigou Formations in Jixi Basin of Heilongjiang Province |
1992 |
| details |
Albian |
|
China(Kirin) |
Yu,J. et al. Early Cretacous spores and pollen assemblage of Yanbian District |
1983 |
| details |
Middle Albian |
Late Albian |
China(Liaoning) |
Yu,J. Early Cretaceous sporo-pollen assemblages in North northern Hebei and Western Liaoning, China |
1988 |
| details |
Cretaceous |
|
China(Sinkiang Uighur) |
Yu,J. et al. Palynological assemblage sequence from Late Permian to Tertiary in northern Xinjian |
1986 |
| details |
Early Cretaceous |
|
USSR(Siberia) |
Zakharov,V.A. et al. Cretaceous System. (In: The Phanerozoic of Siberia (Mesozoic-Cenozoic). Volume 2. I.S.Tsitovich, editor) |
1984 |