Ruffordia type B Dett.& Clif.,1992
- Citations total:
- 2
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| original | Valanginian | England(Sussex) | Dettmann,M.E. et al. Phylogeny and biogeography of Ruffordia, Mohria and Anemia (Schizaeaceae) and Ceratopteris (Pteridaceae): Evidence from in situ, and dispersed spores. | 1992 | |
| original | Valanginian | England(Sussex) | Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. | 1996 |