| details |
Middle Eocene |
Early Oligocene |
Alabama |
Frederiksen,N.O. Mid-Tertiary climate of southeastern Unites States: The sporomorph evidence. |
1980 |
| details |
Claiborne |
|
Alabama |
Gray,J. Temperate pollen genera in the Eocene, (Claiborne), flora, Alabama. |
1960 |
| details |
Eocene |
|
Alabama |
Graham,A. Origin and evolution of the biota of southeastern North America. |
1964 |
| details |
Oligocene |
Recent |
Alabama |
Graham,A. The Tertiary history of the northern temperate element in the northern Latin America biota. |
1999 |
| details |
Late Miocene |
|
Alaska |
Wahrhaftig,C. et al. The coal-bearing group in the Nenana Coalfield, Alaska. |
1969 |
| details |
Late Tertiary |
|
Alaska |
Benninghoff,W.S. et al. Preliminary report on the Upper Cenozoic Carbonaceous deposits in the Johnson River area, Alaska range . |
1960 |
| details |
Late Oligocene |
Early Pleistocene |
Alaska |
Leopold,E.B. Late Cenozoic palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Late Neogene |
|
Alaska |
Hopkins,D.M. et al. Upper Tertiary sediments in Alaska and North-Western Canada. |
1960 |
| details |
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 |
Late Eocene |
|
Alaska |
Biske,S.F. Correlation of Tertiary nonmarine deposits in Alaska and Northeastern Asia. |
1973 |
| details |
Middle Miocene |
Late Miocene |
Alaska |
Liu,G. et al. Climatic comparison of Miocene pollen floras from northerneast China and southcentral Alaska, USA. |
1994 |
| 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 |
Early Miocene |
Middle Miocene |
Alaska(Cook Inlet) |
Fradkina,A.F. et al. Late Oligocene and Miocene flora of the Aldan Basin and its comparison with floras of North-East USSR and Alaska. (In: Cenozoic Flora of Siberia According to Palynological Data. V.N.Sacks and V.S.Volkova, editors) |
1971 |
| details |
Late Oligocene |
Middle Miocene |
Alaska(Cook Inlet) |
Wolfe,J.A. et al. Tertiary stratigraphy and paleobotany of the Cook Inlet Region, Alaska. |
1966 |
| details |
Eocene |
|
Alaska(Gulf) |
Kulkova,I.A. Eocene flora of Iana-Indigirska Lowland and its comparison with Synchronous floras of other Territories of the northern Hemisphere. (In: Cenozoic Flora of Siberia According to Palynological Data. V.N.Sacks and V.S.Volkova, editors) |
1971 |
| details |
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 |
| details |
Early Villafranchian |
|
Algeria |
Beucher,F. Pollen analysis of sediments of Lower. Villafranchian age from the North-West Sahara. |
1965 |