Perisaccus campylopteris
- Citations total:
- 2
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| details | Early Visean | USSR(Moscow Basin) | Vanderflit,K.A. Paleopalynological grounds for the stratigraphic subdivision of Lower Carboniferous deposits of the North west part of the Moscow Basin. (In: Methods of Paleopalynological investigation. S.R.Samolovich, editors) | 1968 | |
| details | Middle Visean | USSR(Urals) | Byvsheva,T.V. Zonation of the Tournaisian and Lower and Middle Visean deposits of the Volga-Urals Region on the basis of spore analysis. | 1974 |