Pterospermopsis rajada
- Citations total:
- 3
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original | Emsian | Spain | Cramer,F.H. Microplankton from three Palaeozoic formations in the Province of Leon, northwest Spain. | 1964 | |
details | Emsian | Spain | Eisenack,A. Critical remarks about Pterospermopsis | 1972 | |
details | Emsian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |