| details |
Middle Miocene |
Pleistocene |
Canada(Yukon) |
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 Eocene |
|
Canada |
Boytsova,E.P. et al. Palynological method the basis of correlation of Paleogenic deposits of various facies in the USSR. |
1976 |
| details |
Late Senonian |
|
Arctic Ocean |
Brattseva,G.M. et al. Upper Senonian of the Gusinaya Bank |
1983 |
| details |
Early Miocene |
Middle Miocene |
Alaska |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| 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 |