Overview

• Discovered in Colorado, 'Apex' measures 11 feet tall and 20 feet long.
• The fossil is 30% larger than the previous record-holder, 'Sophie,' in London.
• Auctioning fossils stirs debate over private ownership versus scientific access.
• The buyer receives 3D scan data to encourage research and educational use.
• Exhibition of 'Apex' will be open to the public in New York before the auction.