Re: Ornithischia/Saurischia Ilium Mass Distribution Hypothesis

["Mickey Mortimer" <Mickey_Mortimer111@msn.com>]

Mike Milbocker wrote-

> Counter-example that came to my mind- Alvarezsaurus
> http://students.washington.edu/eoraptor/Alvarezsaurus%20ilium.jpg
>
> According to:
>
>
http://www.palaeos.com/Vertebrates/Units/350Aves/350.200.html#Alvarezsaurus
>
> The drawing you sent(above)has the head on the left side. I think you'll
> agree the left side of the ilium in the drawing is heavier/taller than the
> right side. Therefore, Alvarezsaurus is Saurischian - which agrees with
> orthodoxy. The palaeos drawing shows it strongly Saurischian, if the mass
> ratio is any measure.

Yes, well the palaeos drawing (by Jaime Headden) is inaccurate in that
regard.  Note the flared brevis fossa on the left process of my scan.  Jaime
doesn't have the original description this was scanned from, perhaps causing
his error.

Mickey Mortimer