a galeaspid, Shuyu zhejiangensis, provides the first real evidence for the steps that led to the evolutionary origin of jawed vertebrates--Institute of Vertebrate Paleontology and Paleoanthropology

a galeaspid, Shuyu zhejiangensis, provides the first real evidence for the steps that led to the evolutionary origin of jawed vertebrates

08 19, 2011

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Natural endocast of Shuyu zhejiangensis, Silurian of Zhejiang, China (IVPP V14334.5). (Image by Gai Zhi-kun)

Structure of nasal and hypophyseal region magnified from the boxed region of V14334.5:digital picture (Left); three-dimensional (3D) reconstruction (Right).(Image by GAI Zhi-kun)

Virtual endocast of Shuyu zhejiangensis (IVPP V14334.3). (Image by GAI Zhi-kun)

Restoration of external morphology of Shuyu zhejiangensis. (Image by GAI Zhi-kun)

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