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. By Asher Elbein In 1999, ...

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One of only four Ceratosaurus skeletons known to exist sold for $30.51 million at Sotheby’s on Wednesday to become the third-most valuable dinosaur fossil to sell at public auction. Highlighted by a ...

(CNN) — A Ceratosaurus fossil that is one of only four known to exist has sold for $30.5 million at auction. The rare dinosaur fossil is “one of the finest and most complete examples of its kind ever ...

A Ceratosaurus fossil that is one of only four known to exist has sold for $30.5 million at auction. The rare dinosaur fossil is "one of the finest and most complete examples of its kind ever found," ...