Ceratosaurus was not among the last dinosaurs — those who would have fallen victim to the asteroid that barreled into our planet some 66 million years ago. Scientists still don’t exactly know why it ...

Ceratosaurus is a Jurassic classic, but remains poorly known. Even though 19th century paleontologist O.C. Marsh described and reconstructed the dinosaur based upon a mostly-complete, partly ...

Sotheby's is auctioning a Ceratosaurus skeleton that used to be displayed at the Mountain America Museum of Ancient Life in Utah. Do dinosaur bones belong in a museum or a "McMansion?" ...

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

Ceratosaurus nasicornis at the Smithsonian National Museum of Natural History Photo by the author Eastern Utah’s Cleveland-Lloyd dinosaur quarry is a treasure trove of predatory dinosaurs. In ...

The 150-million-year-old specimen is valued at up to $6 million by Sotheby’s. Some paleontologists worry this auction and earlier ones are driving fossil market speculators.

A dinosaur from the Jurassic period is headed to the auction block. This juvenile Ceratosaurus was discovered in Wyoming almost 30 years ago. It's 6 feet tall and consists of 139 original fossil bone ...