All of the other known Gorgosaurus skeletons are in museum collections, making this one the only specimen available for private ownership, Sotheby's said.
A project to replace the boardwalk at the Mill Canyon Dinosaur Tracksite in Moah, Utah, cause minor damage to tracks and trace fossils at the site, a Bureau of Land Management paleontologist found.
Researchers have found hundreds of baby dinosaur bones in the Alaskan Arctic, suggesting that dinosaurs may have lived at cold northern latitudes year-round.
"Cooper," a gargantuan dinosaur that roamed the Outback, is the first of its kind found outside South America. The new species had a long neck and tail, as well as four legs, and ate plants.
Harvard researchers say a comet from deep space — not an asteroid from the belt past Mars — was responsible for the mass extinction. Others are skeptical.
A new study reveals there were multiple species of Deinosuchus, the giant crocodylians that lived 75 million years ago. They were among the largest predators in the ecosystem and ate dinosaurs.
Scientists have identified an aggressive bone cancer — for the first time — in the fibula of a dinosaur that lived 76 to 77 million years ago. The diagnosis sheds new light on dinosaurs and disease.