Psilogena
- Citations total:
- 2
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Author - title
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| details | Early Cambrian | Ordovician | USSR(Siberia) | Naumova,S.N. Lower Paleozoic and Precambrian flora. | 1962 |
| details | Early Cambrian | Ordovician | Europe | Naumova,S.N. Lower Paleozoic and Precambrian flora. | 1962 |