original |
Volgian |
Ryazanian |
England(Yorkshire) |
Duxbury,S. Early Cretaceous dinoflagellate cysts. (In: Distribution of Biostratigraphically diagnostic dinoflagellate cysts and miospores from the Northwest European continental shelf and adjacent areas. B.Thusu, editor) |
1978 |
original |
Portlandian |
Ryazanian |
Europe |
Davey,R.J. The stratigraphic distribution of dinocysts in the Portlandian (Latest Jurassic) to Barremian (Early Cretaceous), of northeast Europe. |
1979 |
original |
Early Portlandian |
|
Scotland(Sutherland) |
Riley,L.A. Palynological evidence of an Early Portlandian age for the Uppermost Helmsdale Boulder Beds, Sutherland. |
1980 |
original |
Portlandian |
Ryazanian |
Denmark |
Davey,R.J. Dinocysts stratigraphy of the latest Jurassic to Early Cretaceous of the Haldager No.1 borehole, Denmark. |
1982 |
original |
Late Kimmeridgian |
Ryazanian |
England |
Woollam,R. et al. Dinoflagellate cyst zonation of the English Jurassic. |
1983 |
original |
Late Kimmeridgian |
Ryazanian |
England(Norfolk) |
Riding,J.B. et al. Rotosphaeropsis thula (Davey 1982), comb.nov., emend. A dinoflagellate from the Upper Jurassic - Lower Cretaceous of England. |
1989 |