| details |
Keuper |
Early Liassic |
USSR(Ukrainian SSR) |
Kravchenko,V.M. et al. The age of old crusts of weathering on iron-ore deposits of the Ukrainian Shield and Voronezh Anticlise by spore and pollen analysis data. |
1970 |
| details |
Early Keuper |
|
W.Germany |
M¤dler,K.A. Spores typical of the German Triassic, particularly Northwest Germany. |
1968 |
| details |
Keuper |
Liassic |
E.Germany |
Schulz,E. Stratigraphic distribution of spores and pollen from the Upper Permian to the Lowermost Lias in northern Middle Europe. |
1966 |
| original |
Early Keuper |
Early Liassic |
E.Germany |
M¤dler,K.A. The geological distribution of spores and pollen in the German Triassic. |
1964 |