Polycingulatisporites convallatus
- Citations total:
- 2
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| original | Westphalian B | Early Stephanian | China(Ningsia Hui) | Wang,H. Middle and Upper Carboniferous sporo-pollen assemblages from Henshanbu, Ningxia. | 1984 |
| details | Kinderscoutian | Early Langsettian | China(Kansu) | Zhu,H. A revised palynological Sub-Division of the Namurian of Jingyuan, Northwest China | 1993 |