• Stanford U., B.A. with distinction, 1968, Department of History Minors: Anthropology and Classics
• Columbia U., Ph.D. with distinction, 1977, M.A., 1974, Department of Anthropology
  Human Ecology, Method and Theory, Prehistory of South and Central America

• U. of Illinois at Chicago Professor of Anthropology, 1994- Member of the Awards Committee, College of Liberal Arts and Sciences, 2004- Member of the Executive Committee of the Graduate College, 2002-04 Member of the Graduate College, 1994- Director, Lower Amazon Project, 2002- and Congo Basin Project, 2002-
• Field Museum of Natural History, Curator of Archaeology, 1991-2002 Director, Lower Amazon Project, 1991-02, and Congo Basin Project, 1996-02 Member, Science Advisory Council, 1993-98
• American Museum of Natural History, New York, Research Associate, 1986-1996 Guest Curator, South American Hall, 1986-89, Director, Lower Amazon Project, 1986-91 Member, Research Fund Committee, 1986-88
• Museum of the American Indian, New York Curator, South and Central America, 1976-85, Associate Curator, 1974-75, Assistant Curator, 1973-74, Curatorial Assistant, 1970-72 Chair, Exhibition Committee, 1979-85, Member, Curatorial Council, 1974-85

• Northwestern U., Adjunct Professor of Anthropology, 1993
• University of Illinois at Chicago, Adjunct Professor of Anthropology, 1992-94
• Harvard U., Visiting Lecturer in Anthropology, 1991
• Boston U., Research Fellow, Center for Remote Sensing, 1991-98
• U. of Florida at Gainesville, Adjunct Professor of Anthropology and Adjunct Curator, Florida Museum of Natural History, 1989
• New York U., Adjunct Professor of Anthropology, 1986