[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Stego/Ankylo limbs
>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.