Punctatisporites facilis
- Citations total:
- 1
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| details | Early Visean | USSR(Urals) | Ananiev,A.R. et al. Stratigraphy of the Coal-bearing Lower Carboniferous of the eastern Slope of the Urals. (In: Paleontological Characteristics of the Main Subdivisions of the Carboniferous.) | 1979 |