| details |
Early Reuverian |
|
W.Germany(N.Rhine) |
Leschik,G. The origins of the Brown Coal of the Wetterau and its Micro-and Macroflora. |
1956 |
| details |
Early Oligocene |
|
USSR(Pre-Caucasus) |
Pokrovskaya,I.M. Oligocene spore-pollen complexes in the Pre-Caucasus |
1956 |
| original |
Late Neogene |
|
W.Germany(N.Rhine) |
Grebe,H. The micro and megaflora of the Pliocene Clay and Cygyttja Lense in the Kieseloolith-Schichten of Swisterberg-Weilerswist, (Sechtem Sheet) and the age of the Tertiary deposits of the Nederrheinische Bucht. |
1955 |
| details |
Oligocene |
Middle Miocene |
W.Germany(N.Rhine) |
Stolz,G. Plant ecosystem of the Rhine Browncoal and their succession in special reference to the Bright Layers. |
1954 |
| details |
Tertiary |
|
USSR(Caucasus) |
Gladkova,A.N. Flora of Maikop deposits of northern Caucasus from data of spore-pollen analysis. (In: Palaeobotanical Symposium) |
1953 |
| details |
Late Pliocene |
|
W.Germany(Hesse) |
Leschik,G. Microbotanic stratigraphic studies of the Upper Pliocene Browncoal from Buchenau (Hunfeld County). |
1951 |
| details |
Late Tertiary |
|
Germany(Schleswig) |
Thomson,P.W. Contribution to the micropaleontology and history of Late Tertiary Forests of Niedersachsen and Schleswig-Holstein |
1948 |