| details |
Early Pliocene |
|
Atlantic(Norwegian Sea) |
Shipboard Scientific Party Site 642: Norwegian Sea. |
1987 |
| 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 |
Late Miocene |
|
Alaska |
Fouch,T.D. et al. Miocene and Pliocene lacustrine and fluvial sequences, Upper Ramparts and Canyon Village, Porcupine River, east-central Alaska. |
1994 |
| details |
Oligocene |
|
Alaska |
Trop,J.M. et al. Stratigraphy, palynology, and provenance of the Colorado Creek basin, Alaska, USA: Oligocene transpressional tectonics along the central Denali fault system. |
2004 |