The Brain of LB1, Homo floresiensis
Science2005Vol. 308(5719), pp. 242–245
Citations Over TimeTop 1% of 2005 papers
Dean Falk, Charles F. Hildebolt, Kirk Smith, M.J. Morwood, Thomas Sutikna, P. J. Brown, Jatmiko Jatmiko, E. Wayhu Saptomo, Barry S. Brunsden, Fred Prior
Abstract
The brain of Homo floresiensis was assessed by comparing a virtual endocast from the type specimen (LB1) with endocasts from great apes, Homo erectus, Homo sapiens , a human pygmy, a human microcephalic, specimen number Sts 5 ( Australopithecus africanus ), and specimen number WT 17000 ( Paranthropus aethiopicus ). Morphometric, allometric, and shape data indicate that LB1 is not a microcephalic or pygmy. LB1's brain/body size ratio scales like that of an australopithecine, but its endocast shape resembles that of Homo erectus . LB1 has derived frontal and temporal lobes and a lunate sulcus in a derived position, which are consistent with capabilities for higher cognitive processing.
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