An exciting paper was published last week in Nature and received a fair bit of media coverage: dating from the Madjedbebe site in Northern Territories of Australia have yielded the earliest human occupation dates of 65,000 years, setting a new minimum age of human migration. The previous conventional earliest occupation date was about 47,000 years ago – so this new date is a pretty big deal. The finds have a bigger implication for human occupation in Southeast Asia: so far the oldest modern human remains found in SEA are from Tham Pa Ling in Laos, which are approximately 60,000 years old. This new find from Australia suggests that there may be older remains yet to be found in SEA.
The time of arrival of people in Australia is an unresolved question. It is relevant to debates about when modern humans first dispersed out of Africa and when their descendants incorporated genetic material from Neanderthals, Denisovans and possibly other hominins. Humans have also been implicated in the extinction of Australia’s megafauna. Here we report the results of new excavations conducted at Madjedbebe, a rock shelter in northern Australia. Artefacts in primary depositional context are concentrated in three dense bands, with the stratigraphic integrity of the deposit demonstrated by artefact refits and by optical dating and other analyses of the sediments. Human occupation began around 65,000 years ago, with a distinctive stone tool assemblage including grinding stones, ground ochres, reflective additives and ground-edge hatchet heads. This evidence sets a new minimum age for the arrival of humans in Australia, the dispersal of modern humans out of Africa, and the subsequent interactions of modern humans with Neanderthals and Denisovans.
- Here’s the three-pronged approach we’re using in our own research to tackle the reproducibility issue (The Conversation, 20 July 2017)
- There Is Now 65,000 Year Old Evidence Of Aboriginal Life (Gizmodo, 20 July 2017)
- First Humans in Australia Arrived Thousands of Years Earlier than we Thought (Newsweek, 19 July 2017)
- Australia was colonised by humans 20,000 years before we first arrived in Europe, says new study (The Independent, 19 July 2017)