The skull probably ends just before where the ear-like bit of torn flesh is, and that portion is likely the skin of the neck, with the vertebrae, neck muscles, trachea and esophagus removed or otherwise fallen out. Seen similar with deer heads that hunters remove in the field. That would account for the ring shape of it as well.
Given that with bears, the nose, eye and ear are in a roughly straight line, if that ear-like bit was an ear, the eye would be quite low, virtually on the jaw joint. Again, it's probably the skin from the neck.
Edited by Insanity, 17 January 2013 - 03:44 AM.
We see things only as we are constructed to see them, and can gain no idea of their absolute nature.
With five feeble senses we pretend to comprehend the boundlessly complex cosmos. - H.P. Lovecraft, "From Beyond" Published 1934