| 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 |
Carboniferous |
|
Nd |
Bharadwaj,D.C. et al. Suggestions for a morphological classification of sporae dispersae. |
1968 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| details |
Nd |
|
Nd |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |