| original |
Middle Barremian |
|
England(Yorkshire) |
Duxbury,S. Barremian phytoplankton from Speeton, East Yorkshire. |
1980 |
| details |
Middle Barremian |
|
England(Yorkshire) |
Stover,L.E. et al. Analyses of Mesozoic and Cenozoic organic-walled dinoflagellates 1977-1985 |
1987 |
| details |
Late Aptian |
|
New Guinea(Papua) |
Davey,R.J. Palynological zonation of the Lower Cretaceous, Upper and Uppermost Middle Jurassic in the northwestern Papuan Basin of Papua, New Guinea. |
1988 |
| details |
Early Aptian |
|
North Sea |
Duxbury,S. A palynological zonation scheme for the Lower Cretaceous: United Kingdom Sector, Central North Sea. |
2001 |