ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2022
Speleological and environmental history of Lida Ajer cave, western Sumatra.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 31 citations in OpenAlex.
- Article
- The microstratigraphy and depositional environments of Lida Ajer and Ngalau Gupin, two fossil-bearing tropical limestone caves of west Sumatra.Scientific reports · 2024Article
- Palaeoenvironments and hominin evolutionary dynamics in southeast Asia.Scientific reports · 2023Article
- Tropical forests in the deep human past.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Speleological and environmental history of Lida Ajer cave, western Sumatra.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
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Authors and funding
16 authors at 7 institutions in 8 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Some of the earliest evidence for the presence of modern humans in rainforests has come from the fossil deposits of Lida Ajer in Sumatra. Two human teeth from this cave were estimated to be 73-63 thousand years old, which is significantly older than some estimates of modern human migration out of Africa based on genetic data. The deposits were interpreted as being associated with a rainforest environment based largely on the presence of abundant orangutan fossils. As well as the main fossil-bearing chamber, fossil-bearing passages are present below a sinkhole, although the relationship between the different fossil deposits has only been tenuously established. Here, we provide significant new sedimentological, geochronological and palaeoecological data aimed at reconstructing the speleological and environmental history of the cave and the clastic and fossil deposits therein. Our data suggest that the Lida Ajer fossils were deposited during Marine Isotope Stage 4, with fossils from the lower passages older than the main fossil chamber. Our use of stable carbon and oxygen isotope analyses of mammalian tooth enamel demonstrates that early humans probably occupied a closed-canopy forest very similar to those present in the region today, although the fossil orangutans may have occupied a slightly different niche. This article is part of the theme issue 'Tropical forests in the deep human past'.
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