Taxonomic composition and environmental distribution of post-extinction rhynchonelliform brachiopod faunas: Constraints on short-term survival and the role of anoxia in the end-Permian mass extinction

► Surviving brachiopods preferentially lived in shallow-water habitats ► Local demise of survivors corresponded with diachronous onset of anoxia ► Short-term survival governed by population size ► Anoxia exacerbated stresses from warming and ocean acidification