Calamospora type B
- Citations total:
- 2
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| original | Namurian B | Namurian C | Poland | DybovЎ,S. Megaspore associations of the Ostrava-Karvina Carboniferous | 1960 |
| original | 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 |