Liriodendron sewardii
- Citations total:
- 2
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| original | Oligocene | Early Miocene | Scotland(Hebrides) | Simpson,J.B. The Tertiary pollen-Flora of Mull and Ardnamurchan | 1961 |
| details | Late Paleocene | Early Eocene | Atlantic Ocean | Boulter,M.C. et al. The Brito-Arctic Igneous Province flora around the Paleocene/Eocene boundary | 1989 |