A 65 million-old skeleton of a Tyrannosaurus Rex found in the State of Dakota in 1990 was auctioned 6 million dollars by Sotheby's in New York early in October 1997.
The 18 metre-long fossil with a 1.8 metre skull was the most complete skeleton ever found of such terrifying species. Nicknamed Sue, after Susan Hendrickson, the paleonthologist who discovered it, the skeleton was bought by the Field Museum of Chicago.