Zehra MunirMay 28, 2026 – 9.15amNew York | Sotheby’s is set to auction a 67-million-year-old Tyrannosaurus rex two years after it sold the most expensive fossil in history, a Stegosaurus, to Citadel owner Ken Griffin.The T. rex – nicknamed “Gus” after Gary “Gus” Licking, the rancher on whose land it was found in South Dakota – will be auctioned at Sotheby’s for between $US20 million and $US30 million ($28 million and $42 million), the highest estimate put on a dinosaur fossil, on July 14.Financial TimesSubscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles