| details |
Late Neogene |
|
|
Ballesio,R. et al. The Upper Neogene of the Valreas Basin |
1978 |
| details |
Middle Eocene |
Early Oligocene |
Alabama |
Frederiksen,N.O. Mid-Tertiary climate of southeastern Unites States: The sporomorph evidence. |
1980 |
| details |
Jackson |
|
Alabama |
Frederiksen,N.O. Middle Eocene to Early Oligocene plant communities of the Gulf Coast. (In: Communities of the Past. A.J.Boucot and W.B.N.Berry, editors) |
1981 |
| details |
Late Neogene |
Pleistocene |
Alaska |
Giterman,R.E. The history of Pliocene and Pleistocene vegetation in the western part of Beringia. |
1980 |
| 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 |
Early Pliocene |
|
Alaska |
Yeend,W. et al. Stratigraphy and palynology of an Upper Tertiary terrace deposit of the ancestral Yukon River near Circle, Alaska. (In: Geologic Studies in Alaska by the United States Geological Survey. J.H.Dover and J.P. Galloway, editors) |
1989 |
| details |
Early Miocene |
Middle Miocene |
Alaska |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| details |
Middle Miocene |
|
Alaska |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| details |
Early Tertiary |
Late Neogene |
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 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 |
Middle Miocene |
Late Miocene |
Alaska |
Liu,G. et al. Climatic comparison of Miocene pollen floras from northerneast China and southcentral Alaska, USA. |
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 |
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 |
Late Neogene |
Alaska(Cook Inlet) |
Wolfe,J.A. et al. Tertiary stratigraphy and paleobotany of the Cook Inlet Region, Alaska. |
1966 |
| details |
Middle Paleocene |
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 Oligocene |
|
Alaska(Peninsula) |
Wolfe,J.A. Reconnaissance spore and pollen examination, Early Tertiary Turbidite Beds, Aleutian Abyssal Plain, Site 183. |
1973 |