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early modern human from Tianyuan Cave, Zhoukoudian, China

Shang, Hong ; Tong, Haowen ; Zhang, Shuangquan ; Chen, Fuyou ; Trinkaus, Erik

Proceedings of the National Academy of Sciences - PNAS, 2007-04, Vol.104 (16), p.6573-6578 [Periódico revisado por pares]

United States: National Academy of Sciences

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  • Título:
    early modern human from Tianyuan Cave, Zhoukoudian, China
  • Autor: Shang, Hong ; Tong, Haowen ; Zhang, Shuangquan ; Chen, Fuyou ; Trinkaus, Erik
  • Assuntos: Biological Sciences ; Bone and Bones - anatomy & histology ; Bones ; China ; Comparative analysis ; Dentition ; Diaphyses ; Fossils ; Human remains ; Humans ; Humerus - anatomy & histology ; Natural History ; Paleoanthropology ; Paleontology ; Pectoralis Muscles - anatomy & histology ; Radiocarbon ; Scapula - anatomy & histology ; Skeletal system ; Skeleton ; Teeth
  • É parte de: Proceedings of the National Academy of Sciences - PNAS, 2007-04, Vol.104 (16), p.6573-6578
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
    Contributed by Erik Trinkaus, March 8, 2007
    Author contributions: H.S., H.T., S.Z., F.C., and E.T. designed research; H.S., H.T., S.Z., F.C., and E.T. performed research; H.S. and E.T. analyzed data; and H.S. and E.T. wrote the paper.
  • Descrição: Thirty-four elements of an early modern human (EMH) were found in Tianyuan Cave, Zhoukoudian, China in 2003. Dated to 42,000-39,000 calendrical years before present by using direct accelerator mass spectrometry radiocarbon, the Tianyuan 1 skeleton is among the oldest directly dated EMHs in eastern Eurasia. Morphological comparison shows Tianyuan 1 to have a series of derived modern human characteristics, including a projecting tuber symphyseos, a high anterior symphyseal angle, a broad scapular glenoid fossa, a reduced hamulus, a gluteal buttress, and a pilaster on the femora. Other features of Tianyuan 1 that are more common among EMHs are its modest humeral pectoralis major tuberosities, anteriorly rotated radial tuberosity, reduced radial curvature, and modest talar trochlea. It also lacks several mandibular features common among western Eurasian late archaic humans, including mandibular foramen bridging, mandibular notch asymmetry, and a large superior medial pterygoid tubercle. However, Tianyuan 1 exhibits several late archaic human features, such as its anterior to posterior dental proportions, a large hamulus length, and a broad and rounded distal phalangeal tuberosity. This morphological pattern implies that a simple spread of modern humans from Africa is unlikely.
  • Editor: United States: National Academy of Sciences
  • Idioma: Inglês
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