| details |
Late Miocene |
|
Canada(British Columbia) |
White,J.M. et al. New Miocene fossil discoveries in the Skonun Formation, Queen Charlotte Islands British Columbia and implications for the basin stratigraphy and climate. (In: Contributions to Canadian Paleontology.) |
1994 |
| details |
Oligocene |
Early Pliocene |
Canada(Arctic) |
White,J.M. Palynostratigraphy of the Esso et al., Issungnak 0-61 Well, Beaufort Sea. |
1989 |
| details |
Early Miocene |
Middle Miocene |
California |
Barnett,J. Palynology and paleoecology of the Tertiary Weaverville Formation, Northwestern California, USA. |
1989 |
| details |
Late Pliocene |
|
California |
Axelrod,D.I. et al. Late Pliocene floras East of the Sierra Nevada |
1960 |
| details |
Recent |
|
California |
Sivak,J. New observations on the pollen of Tsuga. |
1973 |
| details |
Pliocene |
|
California |
Heusser,L.E. et al. Late Tertiary and Pleistocene vegetation history; 20my to 20ky. II. 1. North America. (In: Vegetation History. B.Huntley et al, editor) |
1988 |
| details |
Messinian |
Zanclian |
Alaska |
Stricker,G.D. et al. Mineralogy and stage assignment of some Tertiary Coal from the Tikishla Park Drill Hole, Anchorage Alaska. (In: Geologic Studies in Alaska by the United States Geological Survey. J.P.Galloway and T.D. Hamilton, editors) |
1987 |
| details |
Late Miocene |
|
Alaska |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| 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 |
|
Alaska |
White,J.M. et al. Palynology, paleoclimatology and correlation of Middle Miocene Beds from Porcupine River, (Locality 90-1), Alaska. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) |
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 |
Late Eocene |
Middle Miocene |
Alaska |
Zippi,P.A. Palynology of Tertiary Holitna Outcrops, McGrath and Talkeetna Quadrangles. |
2001 |