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The dispersal of archaic hominins beyond mainland Southeast Asia (Sunda) represents the earliest evidence for humans crossing ocean barriers to reach isolated landmasses. Previously, the oldest indication of hominins in Wallacea, the oceanic island zone east of Sunda, comprised flaked stone artifacts deposited at least 1.02 million years ago at the site of Wolo Sege on the island of Flores. On Sulawesi, the largest Wallacean island, previous excavations revealed stone artifacts with a minimum age of 194,000 years at the open site of Talepu. Now, archaeologists from Griffith University show that stone artifacts also occur at the nearby site of...

The Wallacean islands have always been separated from Asia and Oceania by deep-sea waters. Yet, these tropical islands were a corridor for modern humans migrating into the Pleistocene Australia-New Guinea landmass (Sahul) and have been home to modern human groups for at least 47,000 years. The archaeological record attests a major cultural transition across Wallacea that started around 3,500 years ago and is associated with the expansion of Austronesian-speaking farmers, who intermixed with local hunter-gatherer groups. However, previous genetic studies of modern-day inhabitants have yielded conflicting dates for this intermixing, ranging from 1,100 to nearly 5,000 years ago.

The Australian Research Centre for Human Evolution (ARCHE) team, based in Griffith's Environmental Futures Research Institute, together with Indonesian colleagues, have shed new light on 'Ice Age' human culture and symbolism in a paper published today in Proceedings of the National Academy of Sciences (PNAS). The study was co-led by Associate Professor Adam Brumm, an Australian Research Council (ARC) Future Fellow, and Dr Michelle Langley, who also holds a fellowship from the ARC, analysed the recovered artefacts, and is the country's leading expert in the study of ancient ornaments and bone technology. "Scientists have long been curious about the cultural...