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Re: Gargantuavis a bird, not a pterosaur



2011/7/5 Jaime Headden <qi_leong@hotmail.com>:
>
>
> 5, The ilia face dorsal in *Gargantuavis philoinos* as they do in virtually 
> all ornithothoracean birds, and in *Avimimus portentosus*; this face is such 
> that the entire lateral face of ilium when viewed from above is visible. In 
> therizinosauroids, this is true only for the preacetabular ala, but not 
> anywhere posterior to above the acetabulum, and this is particularly notable 
> because the preacetabular ala in therizinosauroids resemble strongly the 
> condition of graviportal mammals is being deep, thick, and laterall deflected 
> (so that the lateral face is also viewable from the poaterior as well as the 
> dorsal). This doesn't happen in any oviraptorosaur or bird [qualifier: that I 
> know of].
>
Can it be ruled out that deformation generated the observed pattern in
Gargantuavis?