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Re: Dinosaur bipedality

On Tue, 20 May 1997, Jeff Poling wrote:

>    Any good books, with sections exploring the evolution of dinosaur
> bipedality, that I might find in my local library?

On a related issue, didn't ceratopsians become quadrapedal from a bipedal
ancestor (Psitacosuarus<spelling?>)?  So, would it have been the evolution
of bipedality, with a return to quadrapedality in that lineage?

Matt

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