| details |
Late Eocene |
|
Nd |
Pflug,H.D. Origin and development of the angiosperm pollen in earth history |
1953 |
| details |
Late Eocene |
Middle Miocene |
Germany(Hesse) |
Pflanzl,G. The age of Brown Coal of the Meissner Mountain, the Seams 2 and 3 of the Hirschberg and a neighbouring coalseam near Laudenbach. |
1956 |
| details |
Late Oligocene |
Pleistocene |
W.Germany(N.Rhine) |
Jux,U. et al. On the formation and chronology of the Rhine Brown Coal Basin. |
1958 |
| details |
Nd |
|
Bulgaria |
Chernyavska,S. et al. Correlation of the Old Tertiary Basins in Southwest Bulgaria on the basis of the spore and pollen analysis. |
1964 |
| details |
Danian |
|
USSR(Armenian SSR) |
Zaklinskaya,E.D. et al. More information on the Danian flora. |
1968 |