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Re: Ichthyovenator



On Sun, Apr 22, 2012 at 7:32 PM, Brad McFeeters
<archosauromorph2@hotmail.com> wrote:
>
> I have not read the paper yet, but I wonder if a sinusoidal sail might 
> actually be characteristic of female spinosaurids.  Having a gap in the sail 
> above the pelvis might make it easier for the male to get his leg over the 
> female when mounting her (picture spinosaurids in this position: 
> http://www.luisrey.ndtilda.co.uk/html/carnsex.htm).  A somewhat similar 
> condition is also seen in the type specimen of Concavenator, maybe a solution 
> to the same problem.

Interesting idea! Possibly Becklespinax altispinax as well?

Hopefully we have enough specimens to test this some day.
-- 
T. Michael Keesey
http://tmkeesey.net/