Madjedbebe site with excavation in progress. Picture by Dominic O'Brien. Copyright Gundjeihmi Aboriginal Corporation 2015

The first Australians arrived even earlier than we thought

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A treasure trove of thousands of Aboriginal artefacts unearthed in the NT at a rock shelter called Madjedbebe has revealed that humans arrived in Australia around 65,000 years ago, 5,000 years earlier than we thought. That suggests people arrived here before the extinction of the Australian megafauna, the giant animals that used to roam this land.

Journal/conference: Nature

DOI: 10.1038/nature22968

Organisation/s: The University of Queensland, University of Wollongong, The University of Notre Dame Australia, The University of Adelaide, Australian Nuclear Science and Technology Organisation (ANSTO), , Griffith University, Australian National University

Funder: Australian Research Council, Australian Postgraduate Awards, Australian Institute of Nuclear Science and Engineering, the Australian Government’s National Collaborative Research Infrastructure Strategy (NCRIS), L’Oréal Australia For Women in Science Fellowship.

Media Release

From: The University of Queensland

Kakadu find confirms earliest Australian occupation

Aboriginal people have been in Australia for at least 65,000 years – much longer than the 47,000 years believed by some archaeologists.

The discovery, by a team of archaeologists and dating specialists led by Associate Professor Chris Clarkson from The University of Queensland School of Social Science, has been detailed in the Nature journal this week.

The researchers found new evidence at the Madjedbebe site on Mirarr land within the Jabiluka mineral lease, surrounded by the World Heritage-listed Kakadu National Park.

Madjedbebe rock shelter has been excavated four times since the 1970s, most recently by an international team led by Dr Clarkson in partnership with the Mirarr Traditional Owners.

Dr Clarkson said more than 10,000 artefacts were revealed in the lowest layer at the site.

“The site contains the oldest ground-edge stone axe technology in the world, the oldest known seed-grinding tools in Australia and evidence of finely made stone points which may have served as spear tips,” he said.

“Most striking of all, in a region known for its spectacular rock art, are the huge quantities of ground ochre and evidence of ochre processing found at the site, from the older layer continuing through to the present.”

The dig discovered a maxillary (upper jaw) fragment of a Tasmanian Tiger coated in red pigment, giving insight to the central role ochre played in local customs at the time.

Dating carried out by Professor Zenobia Jacobs at the University of Wollongong has revealed that Aboriginal people lived at Madjedbebe at the same time as extinct species of giant animals were roaming around Australia, and the tiny species of primitive human, Homo floresiensis, was living on the island of Flores in eastern Indonesia.

In addition to showing the deep antiquity of Aboriginal occupation, the dig revealed new evidence of activities and lifestyle.

Gundjeihmi Aboriginal Corporation Chief Executive Officer Justin O’Brien said a landmark agreement had made it possible for Dr Clarkson and colleagues to dig the site.

“This study shatters previous understandings of the sophistication of the Aboriginal toolkit and underscores the universal importance of the Jabiluka area,” Mr O’Brien said.

The study, funded through an Australian Research Council Discovery Project grant, promotes discussion about the timing and ways that modern humans first left Africa.

Other UQ researchers involved in the study included Dr Tiina Manne, Dr Andrew Fairburn, Professor James Schulmeister and Kate Connell.

Numerous completed and continuing PhD and honours students Dr Kelsey Low, Dr Xavier Carah, Anna Florin, Delyth Cox, Jessica McNeil and Kasih Norman collaborated on the study.

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