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. 2005 Apr 8;308(5719):242-5.
doi: 10.1126/science.1109727.

The brain of LB1, Homo floresiensis

Dean Falk  1 , Charles Hildebolt, Kirk Smith, M J Morwood, Thomas Sutikna, Peter Brown, Jatmiko, E Wayhu Saptomo, Barry Brunsden, Fred Prior
Affiliations

The brain of LB1, Homo floresiensis

Dean Falk et al. Science. .

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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