Megatuberculati asperum
- Citations total:
- 2
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| details | Carboniferous | USSR | Oshurkova,M.V. The classification of Carboniferous megaspores. (Taxonomy and Methods for the Study of Fossl Pollen and Spores. V.N. Saks and A.F. Khlonova, editors) | 1964 | |
| details | Late Visean | USSR(Ukrainian SSR) | Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. | 1980 |