Revised reconstruction based on 3d scan data (with retrodeformation), adjusted by photos, description in Averianov et al. 2006, own studies of the new skulls. The old reconstruction of the same skull by me (2007) was based only on photos, rough drawings and figures from Averianov et al. 2006 - so it appeared as very innacurate and not represented the original skull. The one detail that I doubt a bit is dorsal postorbital horns. I'm not sure if it the real feature or just an artifact of deformation without study the bones directly.