World's Largest Stegosaurus Fossil, Apex, to Fetch Millions at Sotheby's Auction

The largest and most complete stegosaurus fossil ever found, named "Apex," will be auctioned by Sotheby's in New York on July 17, with an estimated value of up to $6 million. Discovered near Colorado's Morrison Formation, the 11-foot-tall, 20-foot-long specimen includes 247 fossil bones and is believed to be between 146 million and 161 million years old. The auction has sparked debate over the sale of fossils to private collectors, potentially limiting scientific study and public access.