A T-rex fossil billed as one of the world's largest specimens was sold for a record $50.1 million Tuesday to a mystery bidder. But many aren't happy about it.

A giant Tyrannosaurus rex skeleton sold for $50.1 million at an auction in New York on Tuesday, marking a new record price for a dinosaur fossil. The T. rex, nicknamed Gus, is a towering figure, ...

Sotheby's sold a Tyrannosaurus rex specimen for $50.1 million. It's the most expensive dinosaur ever sold at auction, passing ...

Bids on "Gus" will start at $19 million, a steep price for public institutions. Specimens in private collections can be harder for researchers to examine, and they're practically impossible to include ...