Pterospermopsis velata
- Citations total:
- 2
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| original | Early Tertiary | Australia(W.Australia) | Deflandre,G. et al. Fossil microplankton from Australian Late Mesozoic and Tertiary sediments | 1955 | |
| details | Early Tertiary | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |