Institution: | (1) Paleoenvironmental Assessment Lab, Department of Geology, University of Toronto, 22 Russell St., Toronto, Ontario, M5S 3B1, Canada;(2) Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104–6323, USA;(3) Paleoecological Environmental Assessment and Research Lab, Department of Biology, Queen’s University, Kingston, Ontario, K7L 3N6, Canada;(4) Department of Environmental & Resource Studies, Trent University, Peterborough, Ontario, K9J 7B8, Canada;(5) Present address: Paleoecological Environmental Assessment and Research Lab, Department of Biology, Queen’s University, 116 Barrie St., Kingston, Ontario, K7L 3N6, Canada |