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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.
The peace of God be with you.