| original |
Early Albian |
Middle Albian |
USSR |
Bolkhovitina,N.A. Spore and pollen characteristics of Cretaceous layers in the Central Regions of the USSR. |
1953 |
| details |
Eocene |
|
USSR |
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 |
| original |
Eocene |
|
USSR |
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 |
Late Aptian |
Early Cenomanian |
Atlantic Ocean |
Habib,D. Middle Cretaceous palynomorphs in a deep-sea core from the seismic reflector Horizon A outcrop area. |
1969 |