Rhamnus frangula
- Citations total:
- 2
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| details | Pliocene | USSR(Siberia) | Samigulina,E.P. Spore morhology of some plant fossils. (In: Sbornik po voprosam stratigrafii.) | 1957 | |
| details | Late Neogene | W.Germany(Schleswig) | Averdieck,F.R. Palynologic investigation of the Tertiary from Sylt. | 1971 |