T. rex fossil fetches more than $50 million at auction from mystery bidder

A rare Tyrannosaurus rex fossil, known as Gus, has fetched more than $50 million at auction, setting a new world record for the most expensive dinosaur bones ever sold. The anonymous buyer, who participated remotely, outbid six other potential purchasers during a 10-minute bidding session at Sotheby’s in New York. The sale took place on Tuesday, marking a historic moment in the field of paleontology and the commercial trade of prehistoric relics. Discovered in 2021 on a cattle ranch in South Dakota, near where a team of paleontologists had recently concluded their work, the fossil was initially identified by a metatarsal bone. This led to a five-year excavation and reconstruction effort involving over 1,000 individual pieces. The process included meticulous documentation and preparation, ensuring the preservation of the specimen. The fossil, named after the ranch’s owner, Gary Licking, who passed away during the excavation, stands as one of the most complete T. rex fossils ever found, comprising 183 fossilized bones. Gus measures approximately 38 feet in length and is 63 percent complete, with the bones accounting for 75 to 80 percent of the animal’s total mass. Standing upright with its tail extended and right foot slightly raised, the specimen is described as having a full jaw with teeth, two well-preserved feet, and several rarely found bones, including a furcula, or wishbone. Its remarkable state of preservation allows for detailed study and offers valuable insights into the anatomy and behavior of one of the most iconic predators in Earth’s history. The auction house noted that Gus is now the most expensive dinosaur skeleton ever sold, surpassing the previous record held by a nearly complete Stegosaurus, which fetched nearly $45 million in 2024. Before that, the record was set by another T. rex, nicknamed Stan, which sold for nearly $32 million in 2020. The current sale of Gus significantly raises the bar for the valuation of scientifically significant fossils. Cassandra Hatton, vice chair of Sotheby’s, praised the quality of the specimen and the care taken throughout its excavation and preparation. She emphasized that the market values fossils that have been properly studied and preserved, stating, “The market responds when great specimens are taken care of in the right way.” The auctioneer, Phyllis Kao, encouraged bidders to “Try a bigger bite” during the final moments of the bidding process, highlighting the intense competition among collectors. Despite the high price tag, the private sale has sparked debate within the scientific community. Many researchers argue that such a significant and well-preserved specimen should remain available for public study and education. Kristi Curry Rogers, president-elect of the Society of Vertebrate Paleontology, expressed concern that the fossil might become inaccessible for research unless donated to an accredited natural history museum. She urged the new owner to consider preserving the specimen for future generations, emphasizing its importance to scientific advancement. Prior to the auction, the fossil was estimated to sell for between $20 and $30 million. The final bid exceeded all expectations, reflecting both the rarity of the specimen and the growing interest in prehistoric artifacts among private collectors. As the dust settles on this landmark sale, the fate of Gus remains uncertain, pending decisions from the anonymous buyer regarding its future.