| details |
Late Kimmeridgian |
|
England |
Downie,C. Microplankton from the Kimeridge Clay. |
1957 |
| details |
Kimmeridgian |
|
England |
Vozzhennikova,T.F. Introduction to the study of fossilized Peridinid algae. |
1965 |
| details |
Early Kimmeridgian |
|
France |
Gitmez,G.U. Dinoflagellate cysts and acritarchs from the basal Kimmeridgian, (Upper Jurassic), of England, Scotland and France. |
1970 |
| details |
Callovian |
|
Germany |
Riley,L.A. et al. Survey of the stratigraphical distribution of dinoflagellates, acritarchs and tasmanitids in the Jurassic. |
1972 |
| details |
Kimmeridgian |
|
France(Boulonnais) |
Riley,L.A. et al. Age of some dinoflagellate and acritarch Kimmeridgian assemblages, (Upper Jurassic), of Boulonnais, Northern France. |
1977 |