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morphology of dinosaur ancestor

(For those of you who subscribe to several lists, please pardon the
multiple posting of this inquiry.)

I have several questions for the group:  1) Could someone provide me
with a description or a reference regarding the basic morphology of the
dinosaur ancestor (posture, relative fore- and hind-limb lengths, neck
length and shape, etc.)?  2) What are the limits of a typical theropod's
forelimb reach? (Could it reach the ground, raise its arms above its head,
extend them directly forward, etc.?)  3) After reading Alan Feduccia's
book, I would like to hear from the "cursorial origin of flight group" about
the transition from the theropod foot to the bird foot.

Thanks in advance for supplying info to this physiologist and
paleontologist wannabe.

James M. Norton, Ph.D.
University of New England
11 Hill's Beach Road
Biddeford, ME  04005
phone: [207]283-0171 x2270
fax: [207]283-3249
email: jnorton@mailbox.une.edu