Contact: Dr. Mark Purnell
University of Leicester
Caption: This is a highly magnified Scanning Electron Microscope view of the surface of one of the hadrosaur teeth, showing the scratches created about 67 million years ago by tooth movements and feeding. The small black boxes show the areas, each less than half a millimeter wide, in which scratches were analyzed.
Credit: Vince Williams, University of Leicester
Usage Restrictions: Must be used with credit.
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