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Run Tyrannosaurus run
I will not give a detailed critique of Hutchinson's paper in Nature, although
it appears to include serious flaws that can be easily discerned, and I did
supply some hopefully pertinent comments for a Washington Post article on the
subject that ran Thurs the 28th. I will point to some relevant papers that
recently appeared on the issue of speed in giant dinosaurs.
Moi 1998 (officially, 2000 actually) Limb design, function and running
performance in ostrich-mimics and tyrannosaurs. Gaia 15 (the notorious
If you need a copy let me know.
P Christiansen and yours truly 2001 Limb bone scaling, limb proportions, and
bone stength in neoceratopsian dinosaurs. Gaia 16:3-29
For reprints contact P2Christiansen@zmuc.ku.dk
Me and Christiansen 2000 Forelimb posture in neoceratopsian dinosaurs:
implications for gait and locomotion. Paleobiology 26:450-465.
Out of reprints, Per might have some.
On a related matter I've noted that some continue to state that bird femora
work horizontally and theropod femora vertically. This is an exaggeration.
When running the femora of birds have an extensive fore and aft arc, albeit
probably with not quite as much posterior retraction as in theropods whose
femora could probably retract to a little past vertical. See PDW as well as
Gatesy's paper with a stick diagram of a running ostrich limb.