| details |
Aptian |
|
USSR(Azerbaijan SSR) |
Menner,V.V. The spore-pollen analysis method of direct correlation of strata of diverse facies. Chapter 2: Biostratigraphic principles of correlation of marine, lagoon and continental formations. |
1962 |
| details |
Aptian |
|
USSR(Moscow) |
Bolkhovitina,N.A. Spore and pollen assemblage of the Aptian and Albian from the Central Russian Platform. |
1951 |
| details |
Aptian |
|
USSR(Leningrad) |
Bolkhovitina,N.A. Spore and pollen assemblage of the Aptian and Albian from the Central Russian Platform. |
1951 |