| details |
Early Eocene |
|
USSR(Tadzhik SSR) |
Oleynik,V.V. et al. The role of phytoplancton in the genesis of Lower Eocene oil shale of the Tadzhik Depression and the Hissar Range. (In: Plancton and Pelagic organic life in the history of the earth.) |
1979 |
| original |
Valanginian |
|
USSR(Siberia) |
Zatonskaya,S.G. Algae of the Upper Jurassic and the lowest Parts of the Lower Cretaceous in the Shaim oil-bearing Region |
1983 |
| details |
Danian |
|
W.Germany(Schleswig) |
Sarjeant,W.A.S. A restudy of some dinoflagellate cyst holotypes in the University of Kiel collections. V. The Danian (Palaeocene) holotypes of Walter Wetzel (1952, 1955). |
1984 |