File:Psittacosaurus all BW.png

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Summary

Description	Head comparison of the different species of Psittacosaurus, a primitive ceratopsian from the Early Cretaceous of China, Mongolia and Russia, pencil drawing
Date	27 June 2007
Source	Own work
Author	Nobu Tamura ( http://spinops.blogspot.com)

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Psittacosaurus

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