Geological Sciences; paleobotany; plant evolution; paleoclimate; origins of the angiosperms; atmospheric CO2 and climate history; paleocene phytogeography; plant-animal coevolution
Dr. Dilcher has conducted research in Thailand on tertiary leaf fossils of Mangifera (Anacardiaceae) as examples of the utility of leaf marginal venation characters; as well as conducted analyses of particulate samples of Holocene Mangrove vegetation at the American Memorial Park, Saipan, Northern Mariana Islands (in the Philippine Sea).
Selected Awards and Honors
- Elected member of the American National Academy of Sciences, Washington DC, 1989.
- Honorary Doctor of Science Degree, Honoris Causa, from Lyon University, Lyon, France, 2007
- Honorary Doctor of Science Degree, Honoris Causa, from University of Minnesota, Minneapolis, Minnesota, 2009
- National Friendship Award given by the Central Government of People's Republic of China for contributions and dedication to China, 2009.
- Selected as a Visiting Scholar by The Committee on Scholarly Exchange to The People's Republic of China, by the National Academy of Science of the United States of America, 1986
- Sonneborn Award, Indiana University for combining both Distinguished Teaching and Research,1987-88.
- Merit Award in recognition of outstanding Research and Service given by the Botanical Society of America, 1991.
- Botanical Society of America Centennial Award, 2006.
- Palaeobotanical Society International Medal for outstanding contributions to Palaeobotany, Lucknow, India, 2006.