Ph.D. in Paleontology from the University of California, Berkeley (1982)
B.A. in Geology from The College of Wooster (1978)


Professor, Department of Earth Sciences, The College of Wooster. Teaching responsibilities currently include Invertebrate Paleontology, History of Life, Sedimentology & Stratigraphy, Desert Geology, Paleoecology, and First-Year Seminar courses; several Independent Study field and laboratory projects are directed each year. 1993 – 2024.

Associate Professor, Department of Geology, The College of Wooster. 1986-1993.

Assistant Professor, Department of Geology, The College of Wooster. 1982-1986.

Instructor, Department of Geology, The College of Wooster. 1981-1982.

Teaching Assistant, oceanography, paleontology and biostratigraphy courses in the departments of Biology and Paleontology at the University of California, Berkeley. 1979-1981.


Chair, Department of Geology, The College of Wooster: 1988-1998, 2000-2001, 2002-2005, 2008-2009, and 2012-2013.

Elected committee service: The Educational Policy Committee (1986-1989, 1996-1997), the Teaching Staff and Tenure Committee (1989-1992, 1994-1996, 1998-2001, 2002-2005, 2014-2017), the Conference With Trustees Committee (2006-2009, 2010-2013, 2018-2019), and Chair of the Faculty Presidential Search Committee (1994-1995) at the College of Wooster.


Present Research: Evolutionary paleoecology of marine encrusting and boring faunas; systematics and evolution of encrusting bryozoans, foraminiferans and brachiopods; development and early diagenesis of marine carbonate rocks, especially hardgrounds; calcite sea diagenesis and evolutionary dynamics; Pleistocene sea level dynamics and carbonate shores.

Panelist: Research Grants Committee of the Geological Society of America (2018-2020).

Review Boards: American Reference Books Annual, 1995-2014; CHOICE, Current Reviews for Academic Libraries, 1993-2016.

Secretary and Member of Council: The Paleontological Society, 2011-2015.

Program Coordinator and Member of Council: The Paleontological Society, 2000-2006.

Technical Editor: Journal of Paleontology, 1986-1988.

Member of Council: International Bryozoology Association (2013-2019)

Visiting Professor (research leave): Department of Earth Sciences, Oxford University, 1985.

Doctoral Research: A stratigraphic, paleoecologic and sedimentologic study of the Carboniferous Bird Spring Group exposed in southern Nevada, 1978-1982.

Research Assistant: Department of Paleontology, University of California, Berkeley, 1980.

Editor: PaleoBios, 1980-1981.

Senior Museum Preparator: University of California, Berkeley, 1979.

Research Geologist: Chevron Oil Field Research Company, summer 1978.


National Science Foundation grant: Collaborative Research (2021-2024)
Gilbert Harris Award from the Paleontological Research Institution (2018)
Paleontological Society Fellow since 2016.
GeoCUR (Council on Undergraduate Research) Undergraduate Mentoring Award (2015)
National Geographic Society Research Grant for fieldwork in the Baltics, 2011-2013.
ACS Petroleum Research Fund grants, 1989-1991, 1993-1995, 2002-2006.
National Science Foundation Research Experiences for Undergraduates grant, 1995-1997.
Excellence in Education Award (Ohio Magazine), 2004.
Geological Society of America Fellow since 2003.
Howard Hughes Medical Research Institute grants, 1990-1993.
National Science Foundation grant for developing hardground workshop, 1992.
Keck Foundation Geology Consortium grants, 1988-1989, 1991-1992, 1995-2000.
American Chemical Society, Petroleum Research Fund Fellowships, 1986-1987, 1990.
Luce Fellowship for Distinguished Scholarship, 1990, 2000.
Mellon Foundation grants, 1988-1990.
Sigma Xi Grants-In-Aid of Research, 1979, 1984.
Louderback Award (outstanding research), University of California, Berkeley, 1980.
Regent’s Fellowship at the University of California, Berkeley, 1978-1979.
Phi Beta Kappa, 1978.


Palaeontological Association (Overseas Representative, 1988-2020)
The Paleontological Society (Program Coordinator, 2000-2006; Secretary, 2011-2015; Fellow)
Sigma Xi, The Scientific Research Society (President of Wooster Chapter, 1986-1987, 1993-1994)
Geological Society of America (Fellow of the Society since 2003)
International Bryozoology Association (Member of Council, 2013-2019)