Re: Shunosaurus, Tail Clubs, and Ankylosauria

[tlford@ix.netcom.com]

Jaime A. Headden wrote:
> 
> Jerry D. Harris wrote:
>
> 
> <and _Gargoyleosaurus_ from the Late Jurassic of Wyoming [2]).  Has it
> since been shown that the club attributed to _Tianchisaurus_ doesn't
> belong there?  If so, and you've got a reference, please let me know!>
> 
>   Sorry. Off the top of my head, here. When thinking "club", and I
> included the polacanthine "war-spike" at the end of the tail, I was
> unaware of any discovery of a Jurassic form with such. Dealing lately
> with Early Cretaceous fauna, I seem to have lost sight of the Jurassic
> entirely.
> 
Polacanthus dosen't have a 'war-spike'. It's an unprepared section of
the tail and Ken Carpenter will be addressing this at the SVP.

Tracy