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RE: again: frill of Triceratops



Nathan Myhrvold writes (quoting Jonathan Wagner):

 > >  One I would favor is blood support for a keratin sheath.  Since
 > > Triceratops in particular had marginal hornlets, perhaps the entire
 > > frill was covered in horn.  Or maybe all of the vascularization was
 > > there to support the frill.
 > >        Wagner
 > 
 > Antlers on deer, moose and related species are a good example of this -
 > highly vaclularized to support growth, not thermoregulation.

Besides, the shape and position of the frill are really inappropriate
for a thermoregulatory device.

swf@elsegundoca.ncr.com         sarima@ix.netcom.com

The peace of God be with you.