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Tyrannosaurid speed (was Re: Tyrannosaurus feeding paper)

On a side note, has any research been done on the speed of tyrannosaurs BESIDES the larger Tyrannosaurus. I' ve always been on the anti-100% scavenger role for T-Rex. For one, UNTIL Tyrannosaurus reached full-size, do you think the other predators who would have had to hypothetically do the killING are just gonna say "here, you can have this" to a another predator that's smaller and less of a threat. To compare it to a living example, I think of the cheetah, where most all other competition will make them 'hit the road' - tyrannosaurs would have to then by VERY alert, AS WELL as quick enough to get away from this at-the-time bigger [or group of bigger] predator(s), which would actually NECESSITATE them to be speedy buggers, less they . . . . die.
Any thoughts?

On Thursday, June 17, 2004, at 11:55  AM, Simon M. Clabby wrote:

Does anybody have the PDF version of this:

Cranial mechanics and feeding in Tyrannosaurus rex
Emily J. Rayfield
Proceedings: Biological Sciences ISSN: 0962-8452
(Paper)
1471-2954 (Online)
http://www.journals.royalsoc.ac.uk/

Am prepared to swap for;

HULKE, J. W. 1882. An Attempt at a Complete Osteology
of Hypsilophodon Foxii; a British Wealden Dinosaur.
Philosophical Transactions of the Royal Society of
London, 173, 1035-1062

Many thanks,

Simon M. Clabby

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