| original |
Carboniferous |
|
Poland |
Zerndt,J. Megaspores as guide fossils of the productive Coal Measures. |
1931 |
| original |
Westphalian A |
Westphalian C |
Netherlands |
Dijkstra,S.J. et al. A monographic revision of Carboniferous megaspores with special consideration to South Limburg, (Netherlands). |
1946 |
| original |
Westphalian C |
Westphalian D |
Czechoslovakia |
KalibovЎ-KaiserovЎ,M. Paleontological and palynological investigation of Coal overlying beds in Masarykove Jubilejnim Coal Mine, (now the Coal Mine of Peace Defenders) Zbuchov (Plzin Coal Basin) |
1958 |
| original |
Permian |
|
Turkey |
Yahsiman,K. et al. Permian megaspores from Hazru (Diyarbakir). |
1959 |
| original |
Visean |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |