Ptilophyllum
- Citations total:
- 2
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| details | Early Jurassic | USSR(Irkutskaya Oblast) | Gutova,L.N. et al. Vegetation of Early and Middle Jurassic Epochs of the Irkutsk Coal Basin. | 1969 | |
| details | Jurassic | Men©ndez,C.A. Palynological data on the Argentinian Pre-Tertiary floras | 1969 |