Of the three species of taipan, Oxyuranus temporalis is the least known, being described only recently from a single juvenile specimen. We redescribe the species based on additional adult specimens from the Great Victoria Desert. Molecular genetic variation between the three localities from which the species is known was low, suggesting a single widespread population or recent radiation. Limited analysis of faecal material and gut contents suggested solely mammalian prey. The additional specimens suggest the possibility of a considerable distribution across sandy deserts of the central and western interior of Australia. Further studies and fieldwork are required to more accurately determine its geographic range, quantify the toxicity of the venom and assess the suitability of available antivenoms.