Re: Speedy tyrannosaurs

[John Schneiderman <dino@revelation.unomaha.edu>]

> If it is true that modern elephants have been clocked at 40 mph,
> I have no trouble believing that T. rex could exceed that, understanding
> that we are talking about short bursts.  Still, the top speed will
> depend on the actual weight which is still somewhat uncertain.  I offer
> the follow estimates depending on the weight of an adult T.rex:
> 
>       Weight          Top Speed
>       ------          ---------
>       4 tons          45 mph
>       6 tons          35 mph
>       8 tons          25 mph
> 
> Note that a T.rex running even at 25 mph would be an awesome
> sight to behold.  It would have _no_ trouble overtaking (and presumably
> gulping down) a Carl Lewis in a 100 meter sprint.

Does anyone have a similar estimate of top speeds for equally massive 
quadrapeds (example: Edmontosaurus or Triceratops)?

----John Schneiderman (dino@revelation.unomaha.edu)