Re: Mesozoic snow?

[Jura <pristichampsus@yahoo.com>]

--- Tim Williams <twilliams_alpha@hotmail.com> wrote:

> Interestingly (maybe), coelurosaurs rarely show
> cranial ornamentation.  
> Perhaps the plumage (especially pennaceous feathers)
> replaced cranial crests 
> or horns as the principal medium for sexual or
> territorial signalling
> 
> Just a thought.

++++++++++++++++++++++++++++++++

The upside to this is that one would then only need to
grow the showy stuff at certain times of the year
(assuming a mating season), and thus reduce the risk
of becoming easy prey because one wants to show off.

Jason

"I am impressed by the fact that we know less about many modern [reptile] types 
than we do of many fossil groups." - Alfred S. Romer

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