Fig. 15.

Fossil Quercoideae pollen from the Eocene of West Greenland. a, d, g, and j LM micrographs. b, c, e, f, h, i, k, and l SEM micrographs. All pollen grains are shown in equatorial view. a–c Quercus sp. 5 (ancestral or extinct lineage). d–i Quercus sp. 6 (aff. Group Protobalanus). j–l Quercus sp. 7 (aff. Group Protobalanus). Scale bar is 10 µm in a, b, d, e, g, j, and k, and 1 µm in c, f, h, i, and l