Pygmoid Australomelanesian Homo sapiens Skeletal Remains from Liang Bua, Flores: Population Affinities and Pathological Abnormalities

Liang Bua 1 (LB1) exhibits marked craniofacial and postcranial asymmetries and other indicators of abnormal growth and development. Anomalies aside, 140 cranial features place LB1 within modern human ranges of variation, resembling Australomelanesian populations. Mandibular and dental features of LB...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 2006-09, Vol.103 (36), p.13421-13426
Main Authors: Jacob, T., Indriati, E., Soejono, R. P., Hsü, K., Frayer, D. W., Eckhardt, R. B., Kuperavage, A. J., Thorne, A., Henneberg, M.
Format: Article
Language:English
Subjects:
Bicuspid - anatomy & histology
Biological Evolution
Biological Sciences
Body Size
Bone and Bones - abnormalities
Bone and Bones - pathology
Bones
Femur
Femur - anatomy & histology
Femur - diagnostic imaging
Glacial landforms
Head
Hominids
Homo sapiens
Humans
Humerus - abnormalities
Humerus - anatomy & histology
Indonesia
Mandible - anatomy & histology
Microcephaly
New species
Paleontology
Physical Sciences
Population
Rotation
Skeletal system
Skeleton
Skull - anatomy & histology
Teeth
Tibia
Tomography, X-Ray Computed
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Summary:Liang Bua 1 (LB1) exhibits marked craniofacial and postcranial asymmetries and other indicators of abnormal growth and development. Anomalies aside, 140 cranial features place LB1 within modern human ranges of variation, resembling Australomelanesian populations. Mandibular and dental features of LB1 and LB6/1 either show no substantial deviation from modern Homo sapiens or share features (receding chins and rotated premolars) with Rampasasa pygmies now living near Liang Bua Cave. We propose that LB1 is drawn from an earlier pygmy H. sapiens population but individually shows signs of a developmental abnormality, including microcephaly. Additional mandibular and postcranial remains from the site share small body size but not microcephaly.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.0605563103