Psophosphaera microdyctius
- Citations total:
- 2
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| details | Permian | USSR(Taymyr Nat.Okrug) | Dibner,A.F. On the age of the Upper Paleozoic deposits of the Nordvik Region according to data from palynological analysis | 1958 | |
| details | Westphalian B | Westphalian C | USSR(Rostov) | Egorov,A.I. et al. Spores and pollen of Middle Carboniferous deposits of the Don Basin. | 1971 |