Ginkgocycadophytus nigricans
- Citations total:
- 2
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| details | Ufimian | USSR(Yakut ASSR) | Dibner,A.F. Separation of Permian deposits of the Oleneks Rise into formations on palynological data. | 1965 | |
| details | Kungurian | Kazanian | USSR(Yakut ASSR) | Hart,G.F. The biostratigraphy of Permian palynofloras. | 1970 |