| details |
Givetian |
Famennian |
Nd |
Chaloner,W.G. Spores and Land-Plant evolution. |
1967 |
| details |
Tournaisian |
Namurian |
Spitsbergen |
Bharadwaj,D.C. et al. Spore assemblage out of a Lower Carboniferous shale from Spitzbergen. |
1961 |
| details |
Namurian |
|
Romania |
Baltes,N. et al. Palynologic contributions to the knowledge of stratigraphy of deposits drilled in the Moesic Platform. |
1963 |
| details |
Middle Devonian |
Late Devonian |
Illinois |
Guennel,G.K. Devonian spores in a Middle Silurian Reef. |
1963 |
| details |
Nd |
|
Nd |
Pashkevich,N.G. Morphological classification of dispersed fossil spores. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |