Ph.D. Harvard University, 1984
M.A. Harvard University, 1978
M.Sc. University of Alberta, 1977
My research focuses on Mesozoic terrestrial vertebrates, especially dinosaurs and their relatives, and changes in continental ecosystems through time. I have collected fossils of dinosaurs and other extinct vertebrates in North America, Africa, Asia, and Europe. I have discovered scores of new species of extinct mammal precursors and reptiles, including a number of new dinosaurs.
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