The Stan Effect — How a T. rex Redefined the Fossil Market

When Christie’s sold Stan the T. rex for $31.8 million in 2020, it did more than break a record — it expanded the visibility of an entire field. The sale triggered what I call The Stan Effect: a self-reinforcing cycle of headlines, new audiences, and growing institutional and collector interest that brought fossils into broader cultural conversation. In the years that followed, major dinosaur skeletons moved through auction rooms in New York, Paris, Zurich, and beyond, from Big John at Hôtel Drouot to Trinity at Koller, Apex at Sotheby’s, and Cera at Phillips. By the time Phillips sold the juvenile Triceratops above estimate in 2025, the shift was no longer speculative. Fossils had entered a space uniquely their own: scientific discoveries, cultural objects, and enduring expressions of deep time. Now, in July 2026, Sotheby's will offer Gus — one of the largest and most complete T. rex specimens ever discovered, estimated at $20–30 million, the highest estimate ever placed on a dinosaur fossil. The story Stan began is still unfolding.
