| details |
Early Oligocene |
Middle Oligocene |
USSR(WSL) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Eocene |
|
USSR(Turkmen SSR) |
Abuzyarova,R.Y. Spore-pollen complexes of Eocene deposits of Turkenia, (Badkhiz). |
1956 |
| original |
Late Oligocene |
|
Vermont |
Traverse,A. Pollen analysis of the Brandon Lignite of Vermont. |
1955 |
| details |
Early Oligocene |
|
USSR(Kazakh SSR) |
Abuzyarova,R.Y. Results of spore-pollen investigations of Oligocene deposits of Shintuzsaya (Turgay) |
1955 |