Paleontology, Stratigraphy & Macroevolution Research Group

The Paleontology, Stratigraphy, and Macroevolution Research Group (PSMRG) examines the evolving relationships of Earth Systems - lithosphere, hydrosphere, atmosphere, and biosphere, through the full range of geologic time, including the present day.  In particular, we are dedicated to understanding Earth's history as preserved in its paleontological and stratigraphic records, and, from this, determining the ways that the physical-chemical-biological history of Earth has impacted the evolutionary trajectories and extinction histories of life.