The Plant Evolution, Paleobotany, and Paleoecology Research (PEPPR) Lab run by Prof. Selena Smith studies the paleobiology of plants, including their evolution and their link to climate and environment on broad timescales. We use both modern and fossil plants, and a variety of tools including phytoliths, stable isotopes, tomography, and anatomy to address questions relating to systematics, evolution, ecology, and the Earth-Life system.