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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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           | Description | 
           
             English: American geologist Dr.  Ferdinand Vandeveer Hayden 
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           | 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. | 
          
          
           Permission ( Reusing this file) | 
           
             This image is in the  public domain due to its age. 
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         Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          This image (or other media file) is in the  public domain because its copyright has expired.
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             You must also include a  United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years, Russia has 74 years for some authors. This image may not be in the public domain in these countries, which moreover do not implement the  rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement the rule of the shorter term. 
            
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            This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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