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Description |
1922 diagram of the skulls of Triceratops (at top) and Trachodon (Edmontosaurus): illustrating the small size of the brains shown in black. The brains of these animals, twice the bulk of an elephant, were the size of a man's fist. |
Date |
1922 |
Source |
Lucas, Frederic Augustus (1922) [1901] Animals of the Past: An Account of Some of the Creatures of the Ancient World (PDF) (6th ed.), New York: American Museum of Natural History, pp. p. 84 Retrieved on 11 March 2009. |
Author |
American Museum of Natural History staff |
Permission ( Reusing this file) |
Public domainPublic domainfalsefalse |
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923. Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
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