| details |
Middle Eocene |
Early Oligocene |
Alabama |
Frederiksen,N.O. Mid-Tertiary climate of southeastern Unites States: The sporomorph evidence. |
1980 |
| details |
Middle Miocene |
|
Alaska |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| details |
Middle Miocene |
|
Alaska |
Wahrhaftig,C. et al. The coal-bearing group in the Nenana Coalfield, Alaska. |
1969 |
| details |
Late Neogene |
|
Alaska |
Hopkins,D.M. et al. Upper Tertiary sediments in Alaska and North-Western Canada. |
1960 |
| details |
Early Tertiary |
Early Miocene |
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 Miocene |
Middle Miocene |
Alaska |
Leopold,E.B. et al. A long pollen sequence of Neogene age, Alaska range. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) |
1994 |
| 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 |
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 |
Early Tertiary |
|
Arctic Ocean |
Zaklinskaya,E.D. Paleogene flora of the Novosibirsk Islands based on palynological data. |
1980 |
| details |
Miocene |
Late Neogene |
Arizona |
Nations,J.D. Palaeontology, paleoecology, and depositional history of the Miocene-Pliocene Verde Formation, Yavapoi County, Arizona. |
1981 |
| details |
Claiborne |
|
Arkansas |
Saunders,W.B. et al. Fossiliferous Amber from the Eocene (Claiborne), of the Gulf coast Plain. |
1974 |
| details |
Late Eocene |
|
Asia |
Biske,S.F. Correlation of Tertiary nonmarine deposits in Alaska and Northeastern Asia. |
1973 |
| details |
Late Oligocene |
|
Asia |
Biske,S.F. Correlation of Tertiary nonmarine deposits in Alaska and Northeastern Asia. |
1973 |
| details |
Early Tertiary |
|
Atlantic Ocean |
Graham,A. Origin and evolution of the biota of southeastern North America. |
1964 |
| details |
Late Oligocene |
|
Austria |
Klaus,W. Shape and preservation of fossil pollen grains in Coprolites and Phosphorites. |
1971 |