1. Research Group Aerobiology and Pollen Information, Department of Oto-Rhino-Laryngology, Medical University Vienna, Vienna, Austria
2. Faculty of Forestry, Department of Forest Botany, Istanbul University Cerrahpaşa, Istanbul, Turkey
3. Section of Historical Geology and Palaeontology, National and Kapodistrian University of Athens, Faculty of Geology and Geoenvironment, Athens, Greece
4. Department of Palaeobiology, Swedish Museum of Natural History, Box 50007, 10405 Stockholm, Sweden