| details |
Late Berriasian |
Middle Valanginian |
Antarctica |
Duane,A.M. Palynology of Byers Group (Late Jurassic-Early Cretaceous) of Livingston and Snow Islands, Antarctic Peninsula : Its biostratigraphical and palaeoenvironmental significance. |
1996 |
| details |
Late Berriasian |
Early Valanginian |
Antarctica |
Duane,A.M. Preliminary palynological investigation of the Byers Group (Late Jurassic-Early Cretaceous), Livingston Island, Antarctic Peninsula. |
1994 |
| details |
Middle Albian |
Late Albian |
Alaska(North Slope) |
May,F.E. et al. Dinoflagellate and acritarch assemblages from the Grandstand Formation, (Middle to Upper Albian), of the Nanushuk Group, Simpon Core Test 25, National Petroleum Reserve in Alaska, northern Alaska. |
1979 |
| details |
Middle Albian |
Early Cenomanian |
Alaska |
May,F.E. et al. An analysis of the Umiat Delta using palynologic and other data, North Slope, Alaska. (In: Geology of Nanushuk Group and related Rocks, North Slope Alaska. A.C.Huffman, Jr., editor) |
1985 |