File:HardgroundPapers.jpg

HardgroundPapers.jpg(720 × 527 pixels, file size: 125 KB, MIME type: image/jpeg)

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English: Scientific papers on hardgrounds by period. Serves as a proxy for hardground abundance over time. Calcite and aragonite sea intervals are plotted on the time axis.
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Author Wilson44691

Graph made by Mark A. Wilson (Department of Geology, The College of Wooster). [1]

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13 September 2008

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current01:30, 14 September 2008Thumbnail for version as of 01:30, 14 September 2008720 × 527 (125 KB)Wilson44691{{Information |Description={{en|1=Scientific papers on hardgrounds by period. Serves as a proxy for hardground abundance over time.}} |Source=Own work by uploader |Author=Wilson44691 |Date=September 13, 2008 |Permission= |other_versio
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