| details |
Oligocene |
Miocene |
USSR(Siberia) |
Zaklinskaya,E.D. Principles of paleofloral differentiation of Cenozoic deposits in the Kazakhstan and Adjoining Parts of the West Siberian Plain |
1959 |
| details |
Early Tertiary |
|
USSR(Siberia) |
Zaltsman,I.G. et al. Continental and marine Paleogene deposits of the South Western Siberia Lowlands. (In: Stratigraphic and Paleontological Material of Siberia. V.I.Krasbov and Y.V.Teslanko, editors) |
1969 |
| details |
Late Eocene |
Early Oligocene |
USSR(Caucasus) |
Zhizhchenko,V.P. Micropaleontological methods of stratigraphical formulation in oil and gas bearing regions. |
1968 |
| details |
Danian |
Oligocene |
USSR(Amurskaya Oblast) |
Ziva,M.V. Palynological characteristic of Paleogene deposits of the Amur-Seya Depression. |
1973 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Ukrainian SSR) |
Zosimovich,V.Y. Oligocene deposits of the South-Eastern Part of the Dnieper-Donetes Depression |
1972 |
| details |
Paleocene |
Oligocene |
USSR(Ukrainian SSR) |
Zosimovich,V.Y. et al. The Zmiyevskiy spore-pollen assemblage in the Paleogene of the Region. (In: Palynological Studies of Sedimentary Deposits in the Ukraine and adjacent Regions. Y.V.Teslenko, editor) |
1976 |