| original |
Namurian A |
Westphalian D |
Poland |
DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. |
1957 |
| original |
Namurian B |
Westphalian C |
Poland |
DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. |
1957 |
| original |
Namurian A |
Westphalian C |
Poland |
DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. |
1957 |
| original |
Westphalian C |
|
Germany(Rhineland) |
Ibrahim,A.C. Spore forms of the Agir horizon of the Ruhr Basin. |
1933 |
| original |
Stephanian B |
Stephanian C |
USA |
Clendening,J.A. Sporological evidence on the geological age of the Dunkard strata in the Appalachian Basin. |
1970 |
| details |
Namurian A |
|
Poland |
Karczewska,J. Carboniferous spores from the Chelmi Boring (Eastern Poland). |
1967 |
| details |
Namurian C |
Westphalian A |
Poland |
Karczewska,J. Carboniferous spores from the Chelmi Boring (Eastern Poland). |
1967 |
| details |
Nd |
|
Nd |
Spinner,E. Contribution on the megaspore genus Tuberculatisporites (Ibrahim)Potonie and Kremp,1954. |
1968 |
| details |
Nd |
|
Nd |
Loboziak,S. The micro and megaspores of the western part of the northern Coal Basin of France. |
1971 |
| details |
Nd |
|
Nd |
Loboziak,S. The micro and megaspores of the western part of the northern Coal Basin of France. |
1971 |
| details |
Namurian |
|
Poland |
Jachowicz,A. New data concerning the occurence of microspores and pollen grains in the Namurian deposits of the north-eastern part of the Upper Silesian Coal Basin. |
1964 |
| details |
Namurian C |
Westphalian B |
Poland |
Karczewska,J. Carboniferous spores from the Chelmi Boring (Eastern Poland). |
1967 |
| details |
Westphalian D |
|
Poland |
Jachowicz,A. Notes on the microflora of the Upper Libiaz Beds (Upper Silesian Coal Basin) |
1960 |
| details |
Late Namurian |
|
Czechoslovakia |
DybovЎ-Jachowiczowa,S. Analysis of the spore content changes in Seam No.8 of the Ludvik Shaft in the Petrswalder Mulde (Ostrava Basin) |
1960 |
| details |
Nd |
|
Nd |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |
| details |
Nd |
|
Nd |
Coquel,R. Palynologic study of the coal series of the Valenciennes production unit of the North France Coal Basin. |
1974 |
| details |
Nd |
|
Nd |
Coquel,R. Palynologic study of the coal series of the Valenciennes production unit of the North France Coal Basin. |
1974 |