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File:Animaldentition ornithoryncusanatinus.png

English: Dentition of a platypus
Date 1849
Source Volume 1 of Sketches in Natural History: History of the Mammalia
Author Charles Knight
( Reusing this file)
Public domain 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.

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