期刊
QUATERNARY SCIENCE REVIEWS
卷 253, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.quascirev.2020.106781
关键词
Megafauna; Late Pleistocene extinctions; Cloggs cave; Landscape change; Radiocarbon dating; OSL dating
资金
- GunaiKurnai Elders Council
- Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage [CE170100015]
- Monash Indigenous Studies Centre at Monash University
- EDYTEM at the Universite Savoie Mont Blanc
- Australian Research Council Future Fellowship [FT130100195]
The latest research on Cloggs Cave reveals that the youngest megafaunal specimens date back to 44,500-54,160 years ago, more than previously believed, aligning with the continental pattern of megafaunal extinctions. This suggests that the extinction of these megafauna could not have been caused by climate change leading into the Last Glacial Maximum.
Understanding of Late Pleistocene megafaunal extinctions in Australia and New Guinea (Sahul) suffers from a paucity of reliably dated bone deposits. Researchers are divided as to when, and why, large-bodied species became extinct. Critical to these interpretations are so-called 'late survivors', megafauna that are thought to have persisted for tens of thousands of years after the arrival of people. While the original dating of most sites with purported late survivors has been shown to have been erroneous or problematic, one site continues to feature: Cloggs Cave. Here we report new results that show that Cloggs Cave's youngest megafauna were deposited in sediments that date to 44,500-54,160 years ago, more than 10,000 years older than previously thought, bringing them into chronological alignment with the emerging continental pattern of megafaunal extinctions. Our results indicate that the youngest megafauna specimens excavated from Cloggs Cave datedate to well before the Last Glacial Maximum (LGM), and their demise could not have been driven by climate change leading into the LGM, the peak of the last Ice Age. (C) 2020 Elsevier Ltd. All rights reserved.
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