| details |
Late Eocene |
Early Oligocene |
Alaska |
McLean,H. et al. Paleogene geology and chronology of southwestern Umnak Island, Aleutian Islands, Alaska. |
1984 |
| details |
Oligocene |
|
Alaska |
Turner,R.F. Paleontology and biostratigraphy. (In: Geological and Operational Summary Norton Sound Cost No.2 Well Norton Sound, Alaska. R.F.Turner, editor) |
1983 |
| details |
Pleistocene |
|
Alaska |
Olson,D.L. et al. Biostratigraphy. (In: Geological and Operational Summary Norton Sound Cost No.2 Well Norton Sound, Alaska. R.F.Turner, editor) |
1987 |
| details |
Late Pleistocene |
|
Alaska |
Olson,D.L. et al. Biostratigraphy. (In: Geological and Operational Summary Norton Sound Cost No.2 Well Norton Sound, Alaska. R.F.Turner, editor) |
1987 |
| details |
Early Oligocene |
|
Alabama |
Oboh,F.E. et al. Early Oligocene palynosequences in the eastern Gulf Coast, USA. |
1994 |