| details |
Westphalian A |
Stephanian |
Spain |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Westphalian C |
|
France(Lorraine) |
Loboziak,S. Precise distribution of some megaspores in the Lorraine Coal Basin. |
1982 |
| details |
Middle Carboniferous |
|
USSR(Ukrainian SSR) |
Semenova,E.V. Megaspores of Paleozoic plants in some Regions of the Ukrain and Southern Voronezh area and their stratigraphic importance |
1987 |
| details |
Middle Carboniferous |
|
USSR(Saratov) |
Semenova,E.V. Megaspores of Paleozoic plants in some Regions of the Ukrain and Southern Voronezh area and their stratigraphic importance |
1987 |
| details |
Westphalian D |
|
Nd |
Scott,A.C. et al. Paleozoic spores and pollen. Chapter 18G Palaeozoic megaspores. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |