Dept. of Geological Sciences, Ohio University

Professor Emeritus, Dept. of Geological Sciences & Geological Engineering, Queen's …

China University of Geosciences, Beijing

Professor Emeritus, University of Wyoming

University of Wyoming and CSU

Associate Professor of Earth Sciences, Dalhousie University

Nevada Geosciences, University of Nevada, Reno

Research Fellow, Department of Earth Sciences, University of Turin

Scientist-F, Prof (AcSiR), Wadia Institute of Himalayan Geology

University of Crete, Natural History Museum