| details |
Middle Albian |
Early Cenomanian |
Alaska(North Slope) |
May,F.E. Dinoflagellate and acritarch assemblages from the Nanushuk Group, (Albian-Cenomanian), and the Torok Formation (Albian), Umat Test Well 11, National Petroleum Reserve in Alaska, northern Alaska. |
1979 |
| details |
Aptian |
Albian |
Alaska |
Mull,C.G. Cretaceous tectonics, depositional cycles, and the Nanushuk Group, Brooks Range and Arctic Slope, Alaska. (In: Geology of Nanushuk Group and related Rocks, North Slope Alaska. A.C.Huffman, Jr., editor) |
1985 |
| 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 |
Aptian |
Albian |
Alaska |
Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska |
1981 |
| details |
Aptian |
Santonian |
Alaska |
Kimyai,A. Palynological assemblages of the Cretaceous sediments in the Fish Creek test Well No.1, North Slope, Alaska |
1992 |
| original |
Early Tithonian |
Hauterivian |
|
Quattrocchio,M.E. et al. Jurassic and Lower Cretaceous dinocyst from Argentina; Their biostratigraphic significance. |
1990 |