The extent and causes of the Australian megafaunal extinction—generally placed in the Late Pleistocene—continues as an active debate and is a preoccupation among archaeologists and palaeontologists working in the Australian scene. Besides ongoing attempts to refine the dating and extent of the extinction event(s), much research is actively directed towards establishing whether, or to what extent, anthropogenic effects played a part in the disappearance of dozens of species of large-bodied animals formerly inhabiting the continent. Central to this question is a determination of how long humans and the megafauna species coexisted. Many factors have been considered as possible causes of the extinction, ranging from environmental variables to entirely human-based activity.