Pterospermella granulata
- Citations total:
- 2
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| original | Late Llandoverian | Ludlovian | Libya | Al-Ameri,T.K. New taxa of the acritarch Group "Pterospermopsis". | 1984 |
| details | Late Llandoverian | Ludlovian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |