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Re: Bipedalism Revisited
On Sun, 10 Nov 1996, Jonathan R. Wagner wrote:
> On a topic which has lately been quite popular, can anyone out there
> answer any of the following:
> 1) Do sprawling reptiles run quadrapedally (ie. with suspended phase)?
> 2) When sprawling reptiles do locomote rapidly in a quadrapedal stance, is
> a point at which they stiffen their spines to limit lateral flexion?
Dimetrodon had some stiffening of the spine.