ceratopsian head skin

[David Krentz <ddkrentz@charter.net>]

  Has anyone ever found skin impressions from a ceratopsian head?  I  
know that some of the  keratinous beak was preserved on the new Black  
Hills trike, but I'm specifically looking into if the keratin  
continued up into the rest of the face as Horner and others have  
suggested.  A presentation  on Majungatholus/saurus at SVP suggested  
the kind of ruggosities on the sides of its face may also have  
supported a sheath of keratin. I wonder if anyone has compared it to  
the suggested ceratopsian model?

  David Krentz