Nanotyrannus Skeleton to Auction for Millions in NYC
The fossil represents a distinct genus, with bidding estimated to reach up to $9 million on October 27.
Updated on Oct. 21, 2026 in Life Sciences
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Sotheby is set to auction a Nanotyrannus skeleton named Jodi on October 27, 2026, in New York. The sale follows recent academic debate and research identifying the dinosaur as a distinct, mature genus rather than a juvenile Tyrannosaurus rex.
Why it matters
The auction occurs as the scientific community reassesses Nanotyrannus taxonomy following studies published in 2025. This classification dispute centers on whether these specimens represent a separate, smaller lineage or simply juvenile stages of T. rex.
The specimen features 191 bone elements and a skull containing 35 teeth, standing 6.5 feet tall and 19.6 feet long. Researchers determined its maturity by analyzing bone growth rings and the internal structure of a throat bone, which indicated no further skeletal growth.
The players
Sotheby's
An international auction house that manages the sale of fine art, antiquities, and rare scientific specimens.
Clayton Phipps
A professional fossil excavator credited with the discovery and recovery of the Jodi skeleton.
The details
Researchers determined maturity by examining bone growth rings, a standard method for calculating the age and life stage of a dinosaur. A study published in Science in December 2025 corroborated these findings by analyzing the structure of a throat bone from a Cleveland Museum specimen, which lacked the active growth indicators expected in a juvenile animal. This physical evidence suggests Nanotyrannus reached skeletal maturity at a significantly smaller size than the T. rex.
Timeline
1942: Discovery of a Nanotyrannus skull in Montana.
2019: Jodi fossil discovered in the Hell Creek Formation.
October 2025: Publication of a Nature study on Nanotyrannus maturity.
October 27, 2026: Scheduled auction of the Jodi skeleton.
The Tech Race
The auction follows recent academic findings in Nature and Science that identify Nanotyrannus as a mature genus. This development marks a shift from the previous consensus that viewed such specimens as juvenile T. rex, elevating the scientific status of the genus.
The skeleton is estimated to sell for between $6 million and $9 million at the upcoming New York auction. Collectors and institutions will monitor the final sale price as a benchmark for the market value of validated distinct-genus fossil specimens.
The takeaway
The upcoming sale marks a significant moment for the classification of the Nanotyrannus genus. Future discourse will focus on whether this identification holds up against additional skeletal analyses in the coming years.
Further reading
For broader developments in paleontological research, visit Life Sciences.
Source note: This article includes information reported by Earth.
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