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473 Views 3 Replies Last post: Jul 20, 2013 4:38 PM by MikeHardman RSS
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Jul 20, 2013 1:59 PM

bead fossil ID help

found this unusual fossil in a pebble, portsmouth, bead length about 30mm, I normally find echinoids but i don't recognise this https://lh4.googleusercontent.com/-cdZeNZXAoCs/UemcOXfhCSI/AAAAAAAAZ74/5zu-rwb3Zq8/s640/DSC_2338.jpg https://lh6.googleusercontent.com/-uyTwP3tbkL8/UemcOb-T7BI/AAAAAAAAZ74/pUE1lvyB1Yc/s400/DSC_2329.jpg plasticine imprint, any help apprciated

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    Jul 20, 2013 9:07 AM (in response to orion2001)
    Re: fossil ID help

    Ah - another 'string of beads' fossil.

    These crop up from time to time, and usually cause a degree of head scratching.

     

    Have a read of this thread

    http://www.nhm.ac.uk/natureplus/message/28310

     

    Mike

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        Jul 20, 2013 4:38 PM (in response to orion2001)
        Re: fossil ID help

        Some of what you're seeing (the parallel lines) is bivalve shells in cross section - exposing the prismatic structure of the original calcium carbonate.

         

        Mike

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