For those who associate Sotheby’s with blue-chip art sales, Geek Week is a reminder that the auction house doubles as a ...

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 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.

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 ...

The Smithsonian’s Ceratosaurus is finally giving up its secrets as it prepares for a long fight with a Stegosaurus in the “David H. Koch Hall of Fossils – Deep Time,” opening June 8, 2019.

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.