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Presence of the earliest vertebrate hard tissue in conodonts

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Science  29 May 1992:
Vol. 256, Issue 5061, pp. 1308-1311
DOI: 10.1126/science.1598573

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vol. 256 no. 5061 1308-1311

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    Author Information

    1. IJ Sansom,
    2. MP Smith,
    3. HA Armstrong,
    4. MM Smith
    1. Department of Geological Sciences, University of Durham, United Kingdom.

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