| details |
Ypresian |
|
Belgium |
De Coninck,J. Organic walled microfossils in the Clay of Ieper in the overijse borehole. |
1980 |
| details |
Late Oxfordian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Callovian |
Late Oxfordian |
England(Dorset) |
Islam,M.A. Review of the fossil dinioflagellate Cleistosphaeridium. |
1993 |
| details |
Early Ypresian |
|
France(Alpes,Cote d'Azur) |
Bignot,G. et al. The Varengeville Formation (Ypresian), of Cap d'Ailly |
1994 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |