Schizospora campyloptera
- Citations total:
- 2
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| details | Late Visean | Canada(Arctic) | Utting,J. et al. Palynology of the Lower Carboniferous, (Visean), of the Sverdrup Basin, Canadian Arctic Archipelago, and comparison with assemblages in Northwestern and eastern Canada. | 1987 | |
| details | Arnsbergian | England(Yorkshire) | Riley,N.J. et al. Stonehead Beck, Cowling, North Yorkshire, England: A British proposal for the Mid-Carboniferous boundary stratotype. (In: Selected studies in Carboniferous Paleontology and Biostratigraphy. P.L.Brenckle et al, editors) | 1987 |