full cv (pdf)

Current and Recent Positions

Associate Professor and John T. Ryan, Jr., Faculty Fellow, Department of Geosciences, Pennsylvania State University. Affiliated faculty, Penn State Institutes of Energy and the Environment.

David and Lucile Packard Fellow for Science and Engineering.

Research Associate, National Museum of Natural History, Smithsonian Institution.

Research Associate, Denver Museum of Nature & Science.

Geology Editorial Board, 2004-2006.

Palaios Associate Editor, 2002-2006.

Education and previous positions

1999-2002: Michigan Fellow and Visiting Assistant Professor, Museum of Paleontology, Department of Geological Sciences, and Michigan Society of Fellows, University of Michigan.

1998-1999: Postdoctoral Fellow, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution.

1998: Ph.D., Department of Geology, University of Pennsylvania.

Major research interests

Paleobotany; paleoecology; evolution, diversification, and extinction of flowering plants and plant-insect interactions; use of fossils as paleoclimate indicators; stratigraphy of continental sequences. Major field projects in Western Interior U.S. and Patagonia, Argentina.