original |
Albian |
|
Wyoming |
Sulkoske,W.C. Cretaceous microplankton assemblages from the Albian to Campanian of Wyoming. |
1975 |
original |
Aptian |
Early Albian |
Canada(NWT,Mackenzie) |
Brideaux,W.W. Taxonomy of Upper Jurassic -Lower Cretaceous microplankton from the Richardson Mountains, District of MacKenzie, Canda. |
1977 |
original |
Middle Albian |
Late Albian |
Wyoming |
Tingey,J.C. Palynology of the Lower Cretaceous Bear River Formation in the Overthrust Belt of southwestern Wyoming. |
1978 |
original |
Middle Volgian |
Middle Barremian |
North Sea |
Heilmann-Clausen,C. Lower Cretaceous dinoflagellate biostratigraphy in the Danish Central Trough |
1987 |
original |
Valanginian |
Barremian |
Libya |
Thusu,B. et al. Jurassic-Early Cretaceous palynostratigraphy in northeast Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
original |
Early Aptian |
|
Egypt |
Omran,A.M. et al. Early Cretaceous palynology of three boreholes from northern Western Desert (Egypt) |
1990 |
original |
Hauterivian |
|
Russia(Siberia) |
Beizel,A.L. et al. New geological data and zoning of the Neocomian key section on Yatriya River (Polar Transuralia) according to Belemnites, dinocysts and palynomorphs |
1997 |