Full Breakdown
Gus the T. rex heads to Sotheby’s auction: a clash of science and wealth
7/12/2026, 11:13:51 AM
The auction showdown
Sotheby’s will auction the Tyrannosaurus rex skeleton nicknamed “Gus” on Tuesday in New York City. Bidding opens at $19 million, with a pre-sale valuation of $30 million and the potential to become the most expensive dinosaur ever sold. The mounted specimen measures about 38 feet long, stands 12½ feet tall and is estimated to be 61 % complete by bone count, including a well-preserved skull, rare belly ribs and a complete pelvis.
Discovery and preparation
The fossil was uncovered in 2021 on a ranch in Harding County, South Dakota, within the Hell Creek Formation. The first bone—a metatarsal—was found on land owned by Gary and Dana Licking; the skeleton was later named for the late Gary “Gus” Licking, who died in February 2022 at age 67. A team led by Thomas Heitkamp spent three field seasons excavating the 183 bone elements, then another three years documenting and reconstructing the specimen in a laboratory. Independent palaeontologist Dr Fiann Smithwick, who has collected fossils for two decades, assisted in the recovery.
Scientific significance
Because 61 % of the bones are present and 75-80 % of the original bone mass remains, Gus offers rare insight into T. rex anatomy and life history. Researchers have identified healed fractures, bite marks on the skull and broken ribs that later mended, suggesting the animal survived multiple injuries. In a period of rapid environmental change, palaeobiologists argue that such empirical data are essential for understanding past mass-extinction events and informing present-day conservation.
Museum perspective and criticism
London’s Natural History Museum dinosaur researcher Prof Susannah Maidment warns that the auction price “prices us out of having access to many, many specimens.” She stresses that “there’s no substitute for having the real fossil” for rigorous anatomical study and notes that the five most expensive dinosaur sales have all occurred since 2020, inflating market expectations.
Auction house rationale
Sotheby’s global head of natural history Cassandra Hatton contends that the high price reflects the “time, skill, expense and risks with recovering dinosaurs.” She argues that rewarding fossil hunters encourages the rescue of specimens that might otherwise be lost to decay or illegal collection, and that auction proceeds can help place important fossils “into the public trust.”
Risks of private ownership
Smithwick points out that leading scientific journals will not accept studies based on specimens held in private collections, effectively rendering them “not science anymore.” He cites the destruction of Mary Anning’s Squaloraja fossil during a WWII bombing as a historic example of how valuable material can disappear when not securely curated.
Market context
Sue, the famous T. rex sold in 1997 for $8.3 million to the Field Museum, fetched $8 million at that time. Stan sold for $31.8 million in 2020, far above its $6-8 million guide price. The current record holder is Apex, a Stegosaurus that sold for $44.6 million in 2024 after an original estimate of roughly $4 million.
Conflicting reports & gaps
While Sotheby’s lists a $30 million high estimate for Gus, the auction record remains Apex’s $44.6 million sale, highlighting a discrepancy between expected and actual top prices. No information has been released about potential buyers or post-sale loan agreements.
Verbatim quotes
- “People die on excavations.” — Cassandra Hatton, global head of natural history, Sotheby’s
- “Gus is one of the largest and most complete T. rex ever found, 61% of the bones has been identified – in general you find half of the skeleton that’s a major scientific find.” — Cassandra Hatton
- “For a lot of excavators, some of these people are living hand to mouth. They’re not wealthy people.” — Cassandra Hatton
- “There’s no substitute for having the real fossil. If we’re going to do any sort of study, the number one thing is we need to understand the anatomy. We need to know what’s real.” — Prof Susannah Maidment, Natural History Museum, London
- “They’re saving the dinosaurs from the second extinction.” — Cassandra Hatton, Sotheby’s
What’s next
The auction will conclude on Tuesday; the final sale price will determine whether Gus joins a museum collection or remains in private hands, shaping future access for scientific research.
