| details |
Hauterivian |
Albian |
Alaska |
Timmcke,T.A. Palynolgoy of the Lower Cretaceous Pebble Shale Unit, Point Barrow, Alaska. |
1981 |
| details |
Albian |
Campanian |
Alaska |
Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska |
1981 |
| details |
Kimmeridgian |
Portlandian |
Africa |
Williams,G.L. et al. Palynological stratigraphy of Deep Sea Drilling Project Site 416. |
1980 |
| details |
Hauterivian |
|
Africa |
Williams,G.L. et al. Palynological stratigraphy of Deep Sea Drilling Project Site 416. |
1980 |