| details |
Middle Campanian |
|
Canada(British Columbia) |
Rouse,G.E. The Disclosure and paleobotanical evaluation of plant microfossils from selected Cretaceous Coal-bearing strata of Canada |
1956 |
| details |
Late Cretaceous |
|
Canada |
Radforth,N.W. et al. Floral transgression of major geological time zones. |
1956 |
| details |
Late Miocene |
Early Pliocene |
Austria |
Klaus,W. Construction and form of Sporotrapoidites illingensis, n.gen.et sp., Sporomorpharum |
1954 |
| details |
Cenomanian |
|
Czechoslovakia |
Thiergart,F. On some spores and pollen of the Perutzer Schichten (Bohemia). |
1953 |
| details |
Tertiary |
|
W.Germany(Rhineland) |
Thiergart,F. Pollen floras of the Tertiary Brown Coals of the Lower Rhine Valley. |
1950 |
| details |
Miocene |
|
Germany |
Thiergart,F. Pollen analysis of the Service of Brown Coal research. |
1940 |
| details |
Eocene |
Early Miocene |
W.Germany(Bavaria) |
Raatz,G.V Microbotanical stratigraphic investigation of the Browncoal of Muskauer Bogens |
1938 |
| details |
Middle Eocene |
Late Pliocene |
E.Germany |
Kirchheimer,F. Comments in regard to the botanical classification of pollen of the Browncoal Layers. |
1938 |
| details |
Middle Oligocene |
Late Oligocene |
W.Germany |
Kirchheimer,F. Comments in regard to the botanical classification of pollen of the Browncoal Layers. |
1938 |
| details |
Late Oligocene |
Miocene |
Germany(Brandenburg) |
Thiergart,F. Pollen flora of Brown Coal from the Niederlausitz, especially from the Marga Mine near Senftenberg |
1938 |
| details |
Miocene |
|
W.Germany(N.Rhine) |
Potonie,R. et al. Microbotany of Miocene Brown Coal from the Niederrheinische Bucht |
1934 |
| original |
Miocene |
|
W.Germany(N.Rhine) |
Potonie,R. et al. Microbotany of Miocene Brown Coal from the Niederrheinische Bucht |
1934 |
| original |
Miocene |
|
W.Germany(N.Rhine) |
Potonie,R. et al. Microbotany of Miocene Brown Coal from the Niederrheinische Bucht |
1934 |
| original |
Miocene |
|
E.Germany |
Potonie,R. Pollenforms from the Tertiary Brown Coals. |
1931 |