| details |
Middle Oligocene |
Late Oligocene |
W.Germany(N.Rhine) |
Benedek,P.N. Phytoplanktons from the Middle and Upper Oligocene of Tonisberg, (Lower Rhine area). |
1972 |
| details |
Middle Oligocene |
|
W.Germany(N.Rhine) |
Benedek,P.N. Phytoplanktons from the Middle and Upper Oligocene of Tonisberg, (Lower Rhine area). |
1972 |
| original |
Bartonian |
|
England(Hampshire) |
Bujak,J.P. Microplankton from the Barton Beds of the Hampshire Basin, England. |
1973 |
| details |
Late Eocene |
|
England(Hampshire) |
Bujak,J.P. et al. Dinoflagellate cysts and acritarchs from the Eocene of Southern England. |
1980 |