| details |
Middle Devonian |
Early Mississippian |
North America |
Arnold,C.A. The fossil-plant record. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Ordovician |
Devonian |
Czechoslovakia |
Koverdynsky,B. et al. The problems of the stratigraphical assignation of the Zabreh Group |
1986 |
| details |
Late Devonian |
|
Ohio |
Taylor,W.A. et al. Spore wall ultrastucture of Protosalvinia |
1987 |
| details |
Devonian |
|
Nd |
Taylor,T.N. et al. In situ, pollen and spores in plant evolution. 14C -Importance of in situ, pollen and spores in understanding the biology and evolution of fossil plants. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Devonian |
|
Ohio |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |