Re: Stegosaur plates as heat exchangers

[NJPharris@aol.com]

In a message dated 97-06-14 04:36:52 EDT, longrich@phoenix.Princeton.EDU
(Nick Longrich) writes:

> There is actually no reason for the plates not to regulate heat *and* work
>  for defense *and* display. Ungulates use their horns for all three.

BTW, what is the current opinion on whether the plates of _Stegosaurus_ were
covered with horn?  I assume the tail spikes would be, as would the splates
of _Huayangosaurus_ and _Dacentrurus_ (and the body armor of the ankylosaurs,
to carry it back one more evolutionary step); but I usually see _Stegosaurus_
restored with its plates covered in some sort of thick skin (a la John
Sibbick).

Nick Pharris