Polyedryxium tetrapyramidale
- Citations total:
- 2
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| original | Frasnian | W.Germany(N.Rhine) | Amirie,G.H.B. Phytoplankton of the Frasnian of Bergisch Syncline of the North Rhineland | 1984 | |
| details | Frasnian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |