| details |
Early Miocene |
Middle Miocene |
Alaska |
Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. |
1969 |
| 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 |
Early Miocene |
Middle 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 |