Unravelling early dinosaur success through fossil digestive contents and trophic dynamics

forthcoming

The early radiation of dinosaurs, spanning approximately 30 million years from their emergence to dominance of terrestrial ecosystems, remains a complex and poorly understood evolutionary event. While previous studies have focused mainly on phylogenetic aspects, less attention has been given to the ecological dynamics that drove their success. This project aims to fill that gap by employing a novel, multidisciplinary approach to investigate the early evolution of dinosaurs through the lens of their dietary and trophic interactions. By analysing bromalites (fossil digestive remains) using cutting-edge methods like synchrotron microtomography, I will infer the food webs in which early dinosaurs participated, shedding light on how their diets and ecological roles evolved. Comparative analysis across Pangean regions and different time periods will enable the construction of a comprehensive palaeoecological model, highlighting key factors in their rise to dominance. Furthermore, I will apply biomolecular techniques adapted from archaeological geochemistry to identify preserved organics within these fossils, providing unprecedented insights into predator-prey relationships. These findings will be integrated into a holistic eco-evolutionary model, offering new perspectives on dinosaur success with broader implications for understanding mass extinction dynamics and current biodiversity crises. To achieve this, I will collaborate with leading experts and engage a team of PhD students and postdocs, ensuring the project’s multidisciplinary goals are met.