Modern distribution of Quercus section Heterobalanus, the fossil sites, and the possible dispersal routes. (IMAGE)
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Figure 3 Modern distribution of Quercus section Heterobalanus, the fossil sites, and the possible dispersal routes. Red star: fossil site from the upper Eocene of Markam Basin, Tibet; green dots: fossil sites in the Miocene; blue squares: fossil sites in the Pliocene; orange triangles: fossil sites in the Pleistocene; gray dots: modern occurrences, data obtained from the Global Biodiversity Information Facility (GBIF). Red and blue arrows: potential dispersal routes.
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