Allosaurus skull and jaw.

3D Model

Allosaurus fragilis.Theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period.

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

Thanks to S. Lautenschlager for sharing the original file.

You can see a 3D printing model here:https://www.youtube.com/watch?v=FL0tFeCvSXc