It had a narrow skull, horns in front of its eyes and a crest that ran from those horns to its nose. Each of the dinosaur's long arms ended with three sharp claws.

A computer reconstruction of an Allosaurus skull used in the Finite Element Analysis. Light yellow areas indicate where the highest stress is on the bones during biting. Image - Emily Rayfield.

But computerized three-dimensional models of a fossilized Allosaurus skull show the 1 1/2-ton meat eater to be one of the first real “airheads” in the animal kingdom, with a skull that was ...

Allosaurus jimmadseni, possesses several unique features, among them a short narrow skull with low facial crests extending from the horns in front of the eyes forward to the nose and a relatively ...