| details |
Ypresian |
|
Belgium |
De Coninck,J. Assemblages of organic walled microfossils in the Upper Ypresian and in the Lutetian of the Kallo borehole. |
1980 |
| details |
Ypresian |
|
England(Sussex) |
Powell,A.J. et al. Upper Paleocene-Lower Eocene dinoflagellate cyst sequence biostratigrapahy of Southeast England. (In: Correlation of the Early Paleogene in Northwest Europe. R.W.O Knox et al, editors) |
1996 |
| details |
Ypresian |
|
USSR(Tyumenskaya Oblast) |
Ilyina,V.I. et al. Microphytofossils and detail stratigraphy of marine Mesozoic and Cenozoic of Siberia. |
1994 |