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Re: Ceratopsid controversy



 --- "Jaime A. Headden" <qilongia@yahoo.com> wrote: 

>Paul contends that the dorsal ribs and shoulder must
be
> correctly mounted, then Erikson's problem with
> *Torosaurus* will be
> corrected. 

What exactly was Erikson's problem? 

>However, this has not been done, and is
> only theoretical.

Johnson, R. E. and Ostrom, J. H. 1995. The forelimbs
of _Torosaurus_ and an analysis of the posture and
gait of ceratopsian dinosaurs. In, Thomason, J. J.
(ed.) Functional Morphology in vertebrate
palaeontology. Camb. Univ. Press. 277pp

favour a sprawling posture, they even created a
flexible mount of the forelimb, thus reducing the risk
for theoretical errors. If indeed erroneous, is this
also because of misinterpretation of rib orientation
and scapular position? If so, perhaps Johnson and
ostrom should get that leg out of the broom cupboard
and make some modifications!

Best Regards, 
Adam Stuart Smith

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