| original |
Westphalian D |
|
France(Alsace) |
Venkatachala,B.S. On some new spore genera from the Upper Carboniferous Coals of Lothringen-Saar-Pfalz Basin. |
1963 |
| original |
Westphalian D |
|
W.Germany(Saarland) |
Venkatachala,B.S. On some new spore genera from the Upper Carboniferous Coals of Lothringen-Saar-Pfalz Basin. |
1963 |
| details |
Virgilian |
|
Kansas |
Nygreen,P.W. et al. Morphological variation of Potonieisporites in a Late Pennsylvanian Florule. |
1967 |
| details |
Nd |
|
W.Germany |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| details |
Late Stephanian |
|
France(Nievre) |
Primey,D. et al. Identification of flora with Autunian characteristics in Stephanian deposits in the Lucenay-les-Aix Region (Decize Basin, Nievre, France.) |
1987 |