| details |
Early Givetian |
|
Czechoslovakia |
Obrhel,J. New plant finds in the Srbsko-Schichlten, (Middle Devonian). |
1959 |
| details |
Givetian |
|
Czechoslovakia |
Obrhel,J. The Barrandian flora of the Silurian and Devonian. |
1968 |
| details |
Middle Devonian |
|
Nd |
Allen,K.C. A review of in situ, Late Silurian and Devonian spores. |
1980 |
| details |
Devonian |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Devonian |
|
Germany |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Devonian |
|
Belgium |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |