Psittacosaurus_skull_lateral.png
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Summary
| Description | Lateral and anterior view of Psittacosaurus mongoliensis skull |
| Date | |
| Source | http://digitallibrary.amnh.org/dspace/handle/2246/3267 |
| Author | Henry Fairfield Osborn (d. 1935) |
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Permission
( Reusing this file ) |
Author died more than 70 years ago as of 2005. |
Licensing
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This work is in the
public domain
because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the
copyright was not renewed
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rule of the shorter term
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p.m.a.
), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
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The author died in 1935, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 80 years or fewer . 
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |