Gar W. RothwellGar Rothwell is the Edwin and Ruth Kennedy Distinguished Professor of Environmental and Plant Biology, Emeritus, Ohio University, and Courtesy Professor of Botany and Plant Pathology, Oregon State University. He is past-president of the InternationalOrganisation of Palaeobotany, author of the paleobotany textbook, Paleobotany and the Evolution of Plants (Stewart and Rothwell, 1993), and editor of six previous volumes of studies in plant paleontology. His research focuses on the role of development in evolution, and on the patterns of organismal evolution and phylogeny among land plants, particularly lycophytes, equisetophytes, ferns, and seed plants. Read More Read Less