| original |
Westphalian A |
|
Turkey |
Artuz,S. The sporae dispersae of the Turkish bituminous coal from the Zonguldak area, (with special consideration of new species and genera). |
1957 |
| details |
Westphalian A |
|
Turkey |
Artuz,S. Spore studies of the Alimolla, Sulu and Buyuk Coal Seams in the Zonguldak Basins. |
1959 |
| details |
Westphalian A |
|
Turkey |
Artuz,S. Amasra-Tarlaagzi Coal Region Kalin and Ara Layers, (Westphalian C), microspore investigation and correlation tests. |
1963 |
| details |
Westphalian A |
|
W.Germany(Niedersachsen) |
Dжring,H. Spore stratigraphic investigations in the lower part of the Silesian ("Graue Folge"), from the North Hiddensee area. |
1975 |