| details |
Middle Berriasian |
Late Berriasian |
Portugal |
Berthou,P.Y. et al. Stratigraphic implications of palynological studies on Berriasian to Albian deposits from Western and Southern Portugal. |
1990 |
| original |
Ryazanian |
Valanginian |
Denmark |
Monteil,E. Morphology and systematics of the Ceratioid Group a new morphographic approach, revision and emendation of the genus Muderongia, Cookson and Eisenack,1958. |
1991 |
| details |
Late Valanginian |
|
France(Ardeche) |
Monteil,E. Morphology and systematics of the Ceratioid Group a new morphographic approach, revision and emendation of the genus Muderongia, Cookson and Eisenack,1958. |
1991 |
| details |
Ryazanian |
Hauterivian |
USSR(Ryazin) |
Iosifova,E.K. Dinocysts from Tchernaya Retchka (Ryazanian-Aptian, Lower Cretaceous) of the Moscow Basin, Russia |
1996 |
| details |
Early Valanginian |
|
Yemen |
Holden,A. et al. A subsurface lithostratigraphic division of the Hauterivian to Aptian, Furt, (informal), and Qishn Formations, Yeman. |
1997 |
| details |
Early Valanginian |
Early Barremian |
Yemen |
Holden,A. et al. A subsurface lithostratigraphic division of the Hauterivian to Aptian, Furt, (informal), and Qishn Formations, Yeman. |
1997 |
| details |
Late Berriasian |
Early Hauterivian |
Spain |
Leereveld,H. Upper Tithonian - Valanginian (Upper Jurassic - Lower Cretaceous) dinoflagellate cyst stratigraphy of the western Mediterranean. |
1997 |
| details |
Hauterivian |
|
Spain |
Leereveld,H. Hauterivian - Barremian (Lower Cretaceous) dinoflagellate cyst stratigraphy of the western Mediterranean. |
1997 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |