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Science. 2005 Apr 8;308(5719):242-5.

The brain of LB1, Homo floresiensis.

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  • 1Department of Anthropology, Florida State University, Tallahassee, FL 32306, USA dfalk@fsu.edu

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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PMID:
15749690
[PubMed - indexed for MEDLINE]
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