Re: Stego/Ankylo limbs

[ROBERT.J.MEYERSON@uwrf.edu (Rob Meyerson)]

>Or at least it is only attached by muscles and ligaments.  This is true
>of almost all tetrapods. (Birds are about the only exception I know of).
>
>This is why the reconstruction of the shoulder region is so contentious
>- there is no bone-bone articulation to use to position the shoulder.
>
>
>Go take a look at those mounted ceratopsians, you will see that the
>shoulder is attached by an iron bar.

Granted, the upper shoulder socket, formed by the scapulocoricoid (how may 
different ways can I spell this word), is kind of floating in space, but the 
lower shoulder socket seems to be fairly well attached to the sternum.

Rob
***
"Don't Panic."