| details |
Middle Oligocene |
|
W.Germany |
Gocht,H. Sulcusplates of Wetzeliella |
1967 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Early Oligocene |
|
USSR |
Vozzhennikova,T.F. Introduction to the study of fossilized Peridinid algae. |
1965 |
| details |
Early Oligocene |
|
Germany |
Eisenack,A. Catalog of fossil dinoflagellates, hystrichospheres and microfossils |
1964 |
| original |
Early Oligocene |
|
USSR |
Alberti,G. Towards the knowledge of Mesozoic and Early Tertiary dinoflagellates and Hystrichospheres from North and Central Germany, as well as some other European localities. |
1961 |