Mathilde first PhD work on species delimitation in the long-nosed armadillo species complex has been published in Systematic Biology (doi:10.1093/sysbio/syae027). This study revealed a disctinct species of long-nosed armadillo endemic to the Guianan shield (Dasypus guianensis) that we describes. We also CT-scanned the type specimen hosted at the Muséum National d'Histoire Naturelle (Paris). We published and made the 3D-data freely available through MorphoMuseuM (doi:10.18563/