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Re: cause of Gigantism in sauropods

Is it physiologically possible (not hinting at behavioural likelihood
mind) for a fully grown member of the larger sauropod species to push
over the larger trees in their ecosystem?  Might this be indicated by
a correlation between large sauropod sizes and prematurely (whatever
that means when talking about trees) small vegetation sizes?  In that
case, assuming the shunt originated near the limbs, the canopy of the
tree would be somewhere near the head at ground level for grazing
convenience.  Apologies if this has been mentioned before, I am having
trouble keeping up with the pace of this thread :)

On Tuesday, February 15, 2011, Dan Chure <danchure@easilink.com> wrote:
> On 2/14/2011 11:44 AM, Augusto Haro wrote:
> we may ask if there was some correlation between
> maximal plant size and sympatric maximal sauropod size.
> Good question. However, I believe that Lepidodendron and other arborescent 
> lycopodophytes in the Carboniferous coal swamp forests reached heights of 30 
> meters.  That may be the result of competition between plants for for 
> sunlight, because all tetrapod denizens of those forests were pretty much 
> belly crawlers and could exert no pressure for plants to grow that tall. 
>  Maybe sauropods did exert pressures to plants to grow taller, but the 
> Carboniferous forests show that such growth can occur for other reasons.  And 
> why are Giant Sequoias so damn tall?
> Dan