A fight millions of years in the making between Allosaurus and Utahraptor has been avoided. Sen. Curt Bramble, R-Provo, says he’s been persuaded to rewrite SB43 and stop pushing to have Utahraptor ...
It was millions of years in the making, but Utahraptor is now Utah’s official state dinosaur — or it will be on May 8. Gov. Gary Herbert signed SB43 into law Friday and it takes effect, like most ...
In a paper published August 23, authors Cameron Pahl and Luis Ruedas, of Portland State University, show that Allosaurus, a large carnivorous dinosaur from the Jurassic that has long been thought to ...
The fossilized remains of a young Allosaurus measuring 9.3 feet long was the first dinosaur skeleton to be sold publicly in Britain. The juvenile Allosaurus was one of the late Jurassic period's ...
The Smithsonian National History Museum’s fossil specimen of Allosaurus fragilis is perched like a nesting bird guarding a clutch of fossilized eggs. (Courtesy USNM V 4734, Department of Paleobiology, ...