Circumflexipollis
- Citations total:
- 2
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| original | Maastrichtian | USSR(WSL) | Chlonova,A.F. Spores and pollen of the upper half of the Upper Cretaceous of the eastern part of the Western Siberian Lowland. | 1961 | |
| details | Late Maastrichtian | Early Paleocene | Canada(Saskatchewan) | Sweet,A.R. Palynology of the Ravenscrag and Frenchman Formation. (In: Coal Resources of Southern Saskatchewan: A model for evaluation methodology. S.H.Whitaker, J.A.Irvine and P.L.Broughton, editors) | 1978 |