| details |
Middle Volgian |
Valanginian |
North Sea |
Heilmann-Clausen,C. Lower Cretaceous dinoflagellate biostratigraphy in the Danish Central Trough |
1987 |
| details |
Portlandian |
Ryazanian |
USSR(Moscow Basin) |
Iosifova,E.K. Some new dinocyst taxa from the Neocomian of the Moscow Synclise. |
1992 |
| details |
Portlandian |
Ryazanian |
USSR(Moscow Basin) |
Iosifova,E.K. Some new dinocyst taxa from the Neocomian of the Moscow Synclise. |
1992 |
| details |
Early Volgian |
Ryazanian |
Denmark |
Poulsen,N.E. Dinoflagellate cysts from marine Jurassic deposits of Denmark and Poland |
1996 |
| original |
Middle Ryazanian |
Early Valanginian |
Denmark |
Davey,R.J. Dinocysts stratigraphy of the latest Jurassic to Early Cretaceous of the Haldager No.1 borehole, Denmark. |
1982 |
| details |
Middle Ryazanian |
Early Valanginian |
Denmark |
Mehrotra,N.C. et al. Archeopyle type in the dinoflagellate cyst genus Imbatodinium: Some new observations. |
1984 |
| details |
Late Ryazanian |
Early Valanginian |
Denmark |
Piasecki,S. Dinoflagellate cyst stratigrphy of the Lower Cretaceous Jydegard Formation, Bornholm, Denmark. |
1984 |
| details |
Berriasian |
Early 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 |
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 Volgian |
Early Valanginian |
North Sea |
Dybkjaer,K. Palynological dating of the Mandal Formation (Uppermost Jurassic - Lowermost Cretaceous, Norwegian Central Graben) and correlation to organic-rich shales in the Danish sector. |
1998 |
| details |
Kimmeridgian |
Berriasian |
North Sea |
Bell,D.G. et al. Better prospect evaluation with organic geochemistry, biostratigraphy and Seismics |
1990 |
| details |
Early Ryazanian |
|
North Sea |
Birkelund,T. et al. The Hectoroceras kochi Zone, (Ryazanian), in the North Sea Central Graben and remarks on the Late Cimmerian Unconformity. |
1982 |
| details |
Berriasian |
|
England(Dorset) |
Norris,G. Palynology and British Purbeck Facies |
1985 |
| details |
Ryazanian |
|
Norway |
…rhus,N. et al. Biostratigraphy of a Lower Cretaceous section from Sklinnabanken, Norway, with some comments on the Andoya exposure |
1986 |
| details |
Ryazanian |
|
Norway(Offshore) |
Zwan,C.J.Van Der et al. Palynostratigraphy and palynofacies reconstruction of the Upper Jurassic to Lowermost Cretaceous of the Draugen Field, offshore Mid Norway |
1990 |
| details |
Late Portlandian |
|
North Sea |
Herngreen,G.F.W. et al. Dinoflagellate, sporomorph, and micropaleontological zonation of Callovian to Ryazanian strata in the Central North Sea Graben, the Netherlands. |
1988 |
| details |
Ryazanian |
|
Scotland(Hebrides) |
Hitchen,K. et al. Mesozoic rocks from the Hebrides Shelf and implications for hydrocarbon prospectivity in the northern Rockall Tough |
1993 |