original |
Quaternary |
|
USSR(Ukrainian SSR) |
Traverse,A. Palynologic investigation of two Black Sea cores |
1974 |
original |
Late Riphean |
|
Zaire |
Baudet,D. Implications of a palynological study in the Upper Precambrian from eastern Kasai and Northwestern Sahaba, Zaire. |
1987 |
original |
Early Maestrichtian |
|
Arctic Ocean |
Firth,J.V. et al. An Early Maestrichtian organic-walled phytoplankton cyst assemblage from an organic-rich Black Mud in core Fl-533, Alpha Ridge: Evidence for upwelling conditions in the Cretaceous Arctic Ocean |
1998 |