| details |
Givetian |
|
USSR(Russian Platform) |
Kao,L. et al. Early and Middle Devonian spore assemblages from Tushan and Duyun of Kweichow and their stratigraphical significane. |
1975 |
| details |
Frasnian |
|
USSR(Komi ASSR) |
Kushnareva,T.I. et al. Biostratigraphic zonation of the Domanik Formation in the stratotype section |
1978 |
| details |
Emsian |
Famennian |
China(Ningsia Hui) |
Gao,L. Description of spores and the discussion on their age. (In: Continental Devonian system of Ningxia and its Biotas. (J. Pan et al,editors) |
1987 |