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Faculty & Staff

Leon Claessens

Associate Professor
Ph.D., Harvard University
Fields: Vertebrate paleontology, the evolution of verterbrate life through geologic time
Email:lclaesse@holycross.edu  
Office: O'Neil 315 Phone: (508) 793-2594
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Justin McAlister

Assistant Professor
Ph. D., University of North Carolina at Chapel Hill
Fields: How marine organisms like sea urchins respond to environmental change
Email:jmcalist@holycross.edu  
Office: 
Swords 232 Phone: (508) 793-3417
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Sara Gran Mitchell

Associate Professor, Director, Environmental Studies
Ph.D., University of Washington
Fields: Geology, Geosciences
Email:smitchel@holycross.edu 
Office: Swords 234 Phone: (508) 793-3420
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Madeline Vargas

Professor
Ph.D., University of Connecticut, Storrs
Fields: The physiology and ecology of extremophile and iron-reducing bacteria
Email:mvargas@holycross.edu 
Office: O'Neil 333 Phone: (508) 793-3036
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