Beipiao Dinosaurs

[smithjb@sas.upenn.edu (Joshua Smith)]

Grant Harding wrote:
> 
> Hi folks!
> 
> I seem to remember having seen the idea mentioned somewhere that the =
> Beipiao dinosaurs were all killed at the same moment by some grand =
> disaster.  Is this still the leading theory?  Was it ever the leading =
> theory?
> 
> Thanks!
> -G.
> 
        That is certainly a hypothesis.  I have seen it in print in three 
seperate locations.  Of course, there is NO evidence for it since we know 
next to nothing about the Yixian Formation's sedimentation rates at 
Sihetun and thus don't know if this "flock" of birds was a mass kill 
event or an aggredational assemblage.  This, of course, doesn't stop 
people pontificating about it though...


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