| original |
Eocene |
|
W.Germany(Hesse) |
Potonie,R. The microbotany of the Eocene Brown Coal of the Geiseltal. |
1934 |
| details |
Tertiary |
|
W.Germany(Rhineland) |
Thiergart,F. Pollen floras of the Tertiary Brown Coals of the Lower Rhine Valley. |
1950 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Late Eocene |
|
W.Germany(Hesse) |
Engel,E. On the palynology and stratigraphy of the Borken Brown Coal, (Hessen). |
1987 |
| details |
Late Miocene |
|
France(Pyrenees,Hautes) |
Bugnicourt,D. et al. A lignite deposits of Capvern (Plateau de Lannemezan, Hautes-Pyrenees) sedimentology, fossil woods and palynology. |
1988 |