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Re: Amargasaurus...


This is what I think:

1. Sexual Dimorphism. (Male having a bigger and brighter sail, and female having a smaller less colorful sail).

2. Male having the brightest colors on the sail gets the females.

3. Temperature Control.

4. Way of identifying there group by different color patterns.

5. Or maybe to guide it in the water. When crossing rivers, that are quite rough. (Nah that would create more problems, never mind that one).

Steve

>From: "Marcel Bertolucci"
>Reply-To: mbertol@zaz.com.br
>To: "Dinosaur Mailing List"
>Subject: Amargasaurus...
>Date: Wed, 25 Apr 2001 23:14:41 -0300
>
>
> If no one has anything else to say about _Carnotaurus sastrei_, since we've had a very informative and helpful way to, at least, try to understand this weird dinosaur, I'd like to talk about another weird one, of the same country: _Amargasaurus cazaui_.
> What are the most accepted theries to explain his vertebrae's long vertical bifurcation?
> I've seen one that thought these 'double spinal prolongments' were spikes, to deffend him from predators. I don't think that may be possible, because I see them very thin and dellicate to be used this way.
> Let's keep moving on!
> Regards,
>
> Marcel Bertolucci
> ( mbertol@zaz.com.br )
>DINOWEB BRASIL: http://www.geocities.com/CapeCanaveral/Campus/7472/index.html
>"Dinosaurs are the most interesting and amazing mystery of nature!"
>

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