We don’t yet know, but specimens like the one at the Smithsonian may hold additional clues. After all, a Ceratosaurus in the hand is worth two in the rock. Reference: Carrano, M., Choiniere, J ...

Another highlight from the category is the “largest piece of Mars on Earth.” The Martian Meteorite, which Sotheby’s has ...

Sotheby’s may be better known for Warhols and Picassos, but this week, the Upper East Side auction house is going full geek. Through July 15, the annual Geek Week exhibition returns, transforming the ...

A 6-foot-tall Ceratosaurus fossil is going up for auction at Sotheby's this July. Find out what makes this dinosaur so rare and valuable. ... and now he's ready to hand it off to someone else.

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 ...

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 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 ...

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?" ...

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.