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Re: sauropod rearing

In a message dated 1/30/06 11:27:55 AM, rtravsky@uwyo.edu writes:

<< The pelvic region has always looked too rigid to permit much in the way of
rearing, particularly if there are large neural spines. A quick hop up, 
but a sustained rearing...? >>

Say what? Rigidity would be a good thing for rearing. That's why pelvo-sacral 
complexes are so robustly built, especially in ground slothes adapted for 

G Paul