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English: American geologist Dr. Ferdinand Vandeveer Hayden
Date 30 January 2006 (first version); 27 February 2010 (last version)
Source Transferred from en.wikipedia; transferred to Commons by User:Faigl.ladislav using CommonsHelper.
Author Original uploader was BCarpaccio at en.wikipedia. Later version(s) were uploaded by Beao at en.wikipedia.
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