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Academic Positions
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1994- : Professor of Geology, University of California |
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1986-1994: Associate Professor of Geology, University of California,
Santa Barbara |
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1986- : Curator, paleontological collections, UCSB Museum
of Systematics and Ecology |
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1983-1986: Associate Curator of the D. C. Eaton Herbarium,
Yale Peabody Museum of Natural History |
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1977-1986: Assistant (1977-1982) then Associate Curator (1982-1986),
Paleobotanical Collections of the Yale Peabody Museum of Natural History |
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1977-1986: Assistant Professor of Biology (1977-1982); Associate
Professor (1982-1986) Yale University |
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1973-1976: Harvard University - Teaching Fellow in: Paleobotany,
Plant Anatomy, Introductory Botany, General Ecology. |
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Professional Organizations
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Geological Society of America |
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Botanical Society of America, Paleobotanical Section |
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International Organization for Paleobotany |
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International Association of Wood Anatomists |
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The Society of Systematic Biology |
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International Association of Plant Taxonomists |
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Association for Tropical Biology |
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Tertiary Research Group |
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Society for the Study of Evolution |
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Society of Vertebrate Paleontology |