| original |
Ryazanian |
Early Valanginian |
Denmark |
Davey,R.J. Dinocysts stratigraphy of the latest Jurassic to Early Cretaceous of the Haldager No.1 borehole, Denmark. |
1982 |
| original |
Late Volgian |
Early Hauterivian |
North Sea |
Heilmann-Clausen,C. Lower Cretaceous dinoflagellate biostratigraphy in the Danish Central Trough |
1987 |
| original |
Hauterivian |
|
USSR(Ryazin) |
Iosifova,E.K. Dinocysts from Tchernaya Retchka (Ryazanian-Aptian, Lower Cretaceous) of the Moscow Basin, Russia |
1996 |
| original |
Early Valanginian |
|
Atlantic Ocean |
Masure,E. Berriasian to Aptian dinoflagellate cysts from the Galicia Margin, offshore Spain, Sites 638 and 639, ODP Leg 103. |
1988 |
| original |
Early Ryazanian |
|
Denmark |
Poulsen,N.E. Dinoflagellate cysts from marine Jurassic deposits of Denmark and Poland |
1996 |