The spatio-temporal distribution of archaeological and faunal finds at Liang Bua (Flores, Indonesia) in light of the revised chronology for Homo floresiensis

Journal of Human Evolution
T SutiknaR G Roberts

Abstract

Liang Bua, the type site of Homo floresiensis, is a limestone cave on the Indonesian island of Flores with sedimentary deposits currently known to range in age from about 190 thousand years (ka) ago to the present. Recent revision of the stratigraphy and chronology of this depositional sequence suggests that skeletal remains of H. floresiensis are between ∼100 and 60 ka old, while cultural evidence of this taxon occurs until ∼50 ka ago. Here we examine the compositions of the faunal communities and stone artifacts, by broad taxonomic groups and raw materials, throughout the ∼190 ka time interval preserved in the sequence. Major shifts are observed in both the faunal and stone artifact assemblages that reflect marked changes in paleoecology and hominin behavior, respectively. Our results suggest that H. floresiensis and Stegodon florensis insularis, along with giant marabou stork (Leptoptilos robustus) and vulture (Trigonoceps sp.), were likely extinct by ∼50 ka ago. Moreover, an abrupt and statistically significant shift in raw material preference due to an increased use of chert occurs ∼46 thousand calibrated radiocarbon (14C) years before present (ka cal. BP), a pattern that continues through the subsequent stratigraphic sequ...Continue Reading

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Citations

Jun 19, 2019·Scientific Reports·Michael I BirdCorey J A Bradshaw
Feb 3, 2021·Evolutionary Anthropology·Elizabeth G Veatch Jatmiko
Aug 12, 2020·Journal of Human Evolution·Ben J EvansMatthias Meyer
Sep 8, 2020·Evolutionary Anthropology·Giancarlo ScardiaLukas Blumrich
Aug 27, 2021·Nature·Selina CarlhoffAdam Brumm

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