The Tyrannosaurus rex known as “Gus” has become the most expensive dinosaur ever sold at auction after fetching $50.1 million at Sotheby’s on Tuesday, extending a remarkable run that has transformed prehistoric fossils from natural history curiosities into one of the hottest corners of the luxury collectibles market.
The 67-million-year-old skeleton sold after 19 bids, hammering at $43 million before premiums, comfortably stomping on the previous auction record of $44.6 million set in 2024 by the Stegosaurus Apex, also sold by Sotheby’s.
The result is the latest sign that museum-quality dinosaur fossils have joined the ranks of blue-chip contemporary art, rare watches, and championship sports memorabilia as trophy assets for the world’s wealthiest collectors. Over the past few years alone, Christie’s sold the T. rex Stan for $31.8 million, Sotheby’s sold Apex for $44.6 million, and last year a juvenile Ceratosaurus brought $30.5 million against an estimate of just $4 million to $6 million.
The sale also caps another successful “Geek Week” for Sotheby’s, proving how broadly the auction house has expanded beyond fine art. Alongside marquee paintings and luxury goods, Sotheby’s has increasingly built major sales around science, technology, sports memorabilia, and other categories aimed at the same global pool of ultra-high-net-worth collectors.
But as prices continue climbing, so has criticism from paleontologists, who argue blockbuster auctions are putting scientifically important specimens beyond the reach of public institutions.
“The current trend towards dinosaur fossils being marketed and sold like rare artworks at vast prices by auction houses is very concerning,” Richard Butler, a vertebrate paleontologist at the University of Birmingham, told The Guardian. Butler argued that fossils held outside recognized museum collections are effectively lost to research, while soaring prices have pushed museums out of competition.
Stephen Brusatte, a paleontologist at the University of Edinburgh, echoed those concerns, telling the newspaper that while the sale appears entirely legal, “those prices can only be paid by the super-rich.” Other researchers noted that privately owned fossils can be removed from museum loans or sold again, making long-term scientific access far less certain than specimens housed in permanent public collections.
Sotheby’s has pushed back against that criticism before. In May, Cassandra Hatton, the auction house’s vice chairman and worldwide head of science and natural history, told ARTnews that Gus was the product of years of excavation, documentation, and conservation, and argued that commercial fossil hunters often recover and preserve specimens that might otherwise never be excavated. The auction house also has noted that Apex, purchased last year by hedge fund billionaire Ken Griffin, is now on long-term loan to the American Museum of Natural History in New York.
Discovered on a South Dakota ranch between 2021 and 2023, Gus measures roughly 38 feet long and stands 12½ feet tall. Sotheby’s said the specimen consists of 183 fossil bone elements and is approximately 63 percent complete by bone count, placing it among the most complete Tyrannosaurus rex specimens ever discovered. The fossil is named after the late ranch owner Gary “Gus” Licking, on whose property it was unearthed.
