Bipedalism represents one of the most striking forms of locomotor convergence in the history of terrestrial tetrapods. However, it remains unclear whether bipedalism occurred because it conveyed an adaptive advantage over quadrupedal locomotion or that it may have simply resulted as a biomechanical consequence of higher acceleration, or if it was the result of multiple factors. The oldest taxa hypothesized to have employed bipedalism date back to the early Permian, including Eudibamus cursoris and Cabarzia trostheidei. Nonetheless, interpretations regarding the bipedal aptitude of these species have primarily leaned on rather subjective evidence, and this hypothesis has never been tested directly using rigorous biomechanical analyses. The current project thus aims at better understanding the morphofunctional abilities of these species, and to test the degree of their proposed bipedalism using innovative biomechanical analyses combined with paleohistological and ichnological data.