details |
Early 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 |
Late Miocene |
|
Alaska |
Larson,J.A. Biostratigraphy. (In: Geological Report for the Gulf of Alaska Planning Area. R.F.Turner, editor) |
1992 |
details |
Late Maastrichtian |
Early Danian |
Alabama |
Moshkovitz,S. et al. Calcareous nannofossil and dinoflagellate stratigraphy of the Cretaceous-Tertiary boundary, Alabama and Georgia |
1993 |