Tyrannosaurus Rex,skull and jaw.Maastrichtian age of the upper Cretaceous Period, 68 to 66 million years ago.
Citations.
Lautenschlager S (2015) Estimating cranial musculoskeletal constraints in theropod dinosaurs. Royal Society Open Science 2: 150495. http://dx.doi.org/10.1098/rsos.150495.
Thank you very much to S.Lautenschlager for sharing the original file.
3D printing model:
https://www.youtube.com/watch?v=cqng4HrkW-M&t=2s