| details |
Miocene |
Early 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 Pliocene |
|
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 Miocene |
Early Pleistocene |
Pacific Ocean |
Bujak,J.P. et al. Taxonomic reallocation of Cenozoic dinoflagellate cysts from Japan and the Bering Sea |
1986 |
| details |
Middle Oligocene |
Late Oligocene |
W.Germany(N.Rhine) |
Bujak,J.P. et al. Taxonomic reallocation of Cenozoic dinoflagellate cysts from Japan and the Bering Sea |
1986 |