| details |
Late Albian |
Early Cenomanian |
Africa |
Brenner,G.J. Middle Cretaceous floral Provinces and Early migrations of angiosperms. (In: Origin and Early Evolution of Angiosperms.C.B.Beck, editor) |
1976 |
| details |
Middle Eocene |
Early Oligocene |
Alabama |
Frederiksen,N.O. Mid-Tertiary climate of southeastern Unites States: The sporomorph evidence. |
1980 |
| details |
Early Oligocene |
|
Alabama |
Oboh,F.E. et al. Early Oligocene palynosequences in the eastern Gulf Coast, USA. |
1994 |
| details |
Late Neogene |
Pleistocene |
Alaska |
Giterman,R.E. The history of Pliocene and Pleistocene vegetation in the western part of Beringia. |
1980 |
| details |
Late Pliocene |
Early Pleistocene |
Alaska |
Nelson,R,E. et al. Pollen analysis of a Late Pliocene and Early Pleistocene section from the Gubik Formation of Arctic Alaska. |
1985 |
| details |
Late Miocene |
Late Neogene |
Alaska |
Karl,S.M. et al. Tertiary gold-bearing gravel at Livengood, Alaska. (In: Geologic Studies in Alaska. U.S. Geological Survey,1987) |
1988 |
| details |
Late Neogene |
|
Alaska |
Hopkins,D.M. et al. Upper Tertiary sediments in Alaska and North-Western Canada. |
1960 |
| details |
Late Tertiary |
|
Alaska |
Foster,H.L. et al. Fossil pollen from nonmarine sedimentary rocks of the eastern Yukon-Tanana Region, East-Central Alaska. (In: Geologic studies in Alaska by the U.S. Geological Survey,1989) |
1990 |
| details |
Early Miocene |
Middle Miocene |
Alaska |
Yeend,W.E. Tertiary and Quaternary deposits at the Palisades, Central Alaska. |
1977 |
| details |
Early Pliocene |
Middle Pliocene |
Alaska |
Ager,T.A. et al. Pliocene terrace gravels of the ancestral Yukon River near Circle Alaska; Palynology, paleobotany, paleoenvironmental reconstruction and region correlation. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) |
1994 |
| details |
Tertiary |
|
Alaska |
Lamberson,M.N. Palynological analysis of three Tertiary Alaskan Subbutuminous Coal Seams. |
1984 |
| details |
Middle Miocene |
Pleistocene |
Alaska |
White,J.M. et al. An 18 million year record of vegetation and climate change in northwestern Canada and Alaska: Tectonic and global climatic correlates. |
1997 |
| details |
Cretaceous |
|
Alaska(North Slope) |
Scott,R.A. et al. Some Cretaceous plant Megafossils and microfossils from the Nanushuk Group, northern Alaska |
1979 |
| details |
Albian |
|
Alaska(North Slope) |
Stanley,E.A. Cretaceous pollen and spore assemblages from northern Alaska. |
1967 |
| details |
Coniacian |
Santonian |
Alaska(North Slope) |
Stanley,E.A. Cretaceous pollen and spore assemblages from northern Alaska. |
1967 |
| details |
Pliocene |
Pleistocene |
Arctic Ocean |
Willard,D.A. Pliocene-Pleistocene pollen assemblages from the Yermak Plateau Arctic Ocean; Sites 910 and 911 |
1996 |
| details |
Late Neogene |
|
Asia |
Biske,S.F. Correlation of Tertiary nonmarine deposits in Alaska and Northeastern Asia. |
1973 |