| details |
Late Strunian |
|
Pennsylvania |
Chitaley,S.D. et al. Bisporangiostrobus harrisii, gen.et sp.nov., an eligulate Lycopsid cone with Duosporites megaspores and Geminospora microspores from the Upper Devonian of Pennsylvania, USA. |
1988 |
| original |
Tournaisian |
|
USSR(Belorussian SSR) |
Kedo,G.I. Tournaisian spores of the Pripyat Depression and their stratigraphic significance. |
1963 |
| details |
Early Carboniferous |
|
China(Kansu) |
Kao,L. A Lower Carboniferous spore assemblage from the Qianheishan Formation of Jingyuan County, Kansu and its age. |
1980 |
| details |
Tournaisian |
|
USSR(Belorussian SSR) |
Kao,L. A Lower Carboniferous spore assemblage from the Qianheishan Formation of Jingyuan County, Kansu and its age. |
1980 |