| original |
Early Givetian |
|
Scotland(Ross/Cromarty) |
Richardson,J.B. Spores from the Middle Old Red Sandstone of Cromarty, Scotland. |
1960 |
| details |
Early Givetian |
|
Canada(Arctic) |
McGregor,D.C. et al. Devonian spores and conodonts of Melville and Bathurst Island, District of Franklin. |
1972 |
| details |
Early Devonian |
|
China(Kweichow) |
Kao,L. et al. Early and Middle Devonian spore assemblages from Tushan and Duyun of Kweichow and their stratigraphical significane. |
1975 |
| details |
Devonian |
|
Iowa |
Urban,J.B. A study of the morphology of the spore genus Ancyrospora Richardson |
1969 |
| details |
Devonian |
|
Missouri |
Urban,J.B. A study of the morphology of the spore genus Ancyrospora Richardson |
1969 |
| details |
Couvinian |
Givetian |
Belgium |
Streel,M. Study of Devonian Palymorphs from Drilling of Booischot, (Belgium). |
1964 |
| details |
Couvinian |
Givetian |
Belgium |
Streel,M. Palaeobotanic information on the Lower-Middle Devonian boundary in the Ardenno-Rhenean Geosyncline. |
1965 |