original |
Late Tithonian |
Early Valanginian |
Canada(Arctic) |
Davies,E.H. Jurassic and Lower Cretaceous dinoflagellate cysts of the Sverdrup Basin, Arctic Canada; Taxonomy, biostratigraphy, chronostratigraphy. |
1979 |
original |
Late Pliensbachian |
Toarcian |
Canada(Arctic) |
Suneby,L.B. et al. Palynological zonation of the Heiberg Formation (Triassic-Jurassic) eastern Sverdrup Basin, Arctic Canada. |
1988 |
original |
Late Norian |
Early Toarcian |
Canada(Arctic) |
Suneby,L.B. et al. Palynological zonation of the Heiberg Formation (Triassic-Jurassic) eastern Sverdrup Basin, Arctic Canada. |
1988 |
original |
Early Berriasian |
|
California |
Helenes,J. Some variations in the paratabulation of Geonyaulacoid dinoflagellates |
1986 |
original |
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 |