Oligosphaeridium simplex
- Citations total:
- 2
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| details | Tithonian | Early Valanginian | Antarctica | Askin,R.A. Tithonian (Uppermost Jurassic) Barremian, (Lower Cretaceous), spores, pollen and microplankton from the South Shetland Islands, Antarctica. (In: Antarctic Earth Science. R.L. Oliver et al, editors) | 1983 |
| details | Early Barremian | China(Heilungkiang) | Shang,Y.-K. Palynology of the angiospermous fossil-bearing Bed of the Cheng Formation, Jixi, Heilongjiang Province | 1997 |