Bentonite geochronology and tephrostratigraphy for litho- and chronostratigraphic refinement of fossiliferous Campanian strata in western North America

Tegan Beveridge studied weathered volcanic ash horizons within Late Cretaceous rocks in western North America. New high-precision ages and geochemical data facilitated correlation of richly fossiliferous rock units across the continent. Refined understanding of these rocks has implications for investigating dinosaur biogeography and Late Cretaceous ecosystems from Alberta to Mexico