|Location||Leeuwin-Naturaliste National Park, Western Australia|
Devil's Lair is a single-chamber cave with a floor area of around 200 m2 (2,200 sq ft) that formed in a Quaternary dune limestone of the Leeuwin–Naturaliste Ridge, 5 km (3.1 mi) from the modern coastline of Western Australia. The stratigraphic sequence in the cave floor deposit consists of 660 cm (260 in) of sandy sediments, with more than 100 distinct layers, intercalated with flowstone and other indurated deposits. Excavations have been made in several areas of the cave floor. Since 1973, excavations have been concentrated in the middle (approximately on a north-west, south-east axis) of the cave, where 10 trenches have been dug. Archaeological evidence for intermittent human occupation extends down about 350 cm (140 in) to layer 30, with hearths, bone, and stone artefacts found throughout.
Devil's Lair has been the subject of scientific research since the 1970s by palaeontologists and archaeologists. Excavations have recovered stone artefacts, numerous animal bone remains, hearths, bone artefacts and human skeletal remains.
Preservation of cultural materials has been very good and a long, well dated cultural sequence has been documented. The diversity and productiveness of the evidence from Devil's Lair make it unusually valuable as a source of information on cultural and natural history in the extreme southwest of Australia since the first colonisation of the continent.
Devil's Lair is important as one of the earliest sites of human occupation in Australia, a site with very early human ornaments and an unusually rich source of information for prehistoric cultural and natural history in the southwest of Western Australia.
Several different techniques of dating have been used at Devil's Lair to show that human occupation began at around 48,000 years. This makes it rank among the earliest sites in Australia and so an important source of information about the timing and character of the first human colonizers of Australia.
Excavations at Devil's Lair have yielded early human ornaments in the form of three ground bone beads dating to 19,000–12,700 years BP. These beads were made from the limb-bones of macropods and were manufactured by cutting the bone shafts into short segments and grinding them smooth on abrasive stone. A deliberately perforated but otherwise unmodified stone object with wear patterns suggestive of its use as a pendant dated to 14,000 year BP has also been recovered from Devil's Lair.
These artefacts are some of the earliest evidence of symbolic behaviour in Australia and are internationally significant for understanding the timing and character of the emergence of symbolic capacities in humans.
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- Dortch, C. E. (Charles E.); Western Australian Museum (1976), Devils lair : a search for ancient man in Western Australia, W.A. Museum Press, ISBN 978-0-7244-6198-1
- Dortch, C. E. (16 July 1979). "33,000 Year Old Stone and Bone Artifacts from Devil's Lair, Western Australia" (PDF). Western Australian Museum Records and Supplements. 7 (4): 329–367. Retrieved 8 September 2018.
- Balme, Jane, "Devils Lair: Occupation intensity and land-use", Australian Archaeology (79): 179–186, ISSN 0312-2417
- Turney, C. S. M.; M. I. Bird; L. K. Fifield; R. G. Roberts; M. Smith; C. E. Dortch; R. Grun; E. Lawson; L. K. Ayliffe; G. H. Miller; J. Dortch & R.G. Cresswell (2001). "Early Human Occupation at Devil's Lair, Southwestern Australia 50,000 Years Ago". Quaternary Research. 55 (1): 3–13. doi:10.1006/qres.2000.2195.
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