Nanotyrannus Jodi dinosaur fossil to be auctioned at Sotheby’s
A nearly complete dinosaur skeleton known as Jodi, standing two meters tall and measuring six meters long, is set to be auctioned off in Manhattan with an estimated value between US$6 juta and US$9 juta. Scheduled for October 27 at Sotheby’s, the sale places the rare specimen at the center of a growing debate between commercial collectors and researchers.
From Garfield County, Montana to Madison Avenue, Jodi the rare Nanotyrannus has officially arrived at #SothebysNewYork. Plan your visit >> https://t.co/kWHqA274mqAs the finest and most complete Nanotyrannus available, Jodi is now on view to the public at the Breuer building… pic.twitter.com/NNjewZVFHd
- The fossilized skeleton features an estimated 70 percent completeness rating, including a nearly intact skull and a jaw containing roughly 50 teeth.
- Scientific classification debates center on whether the specimen represents a distinct genus or a juvenile Tyrannosaurus rex.
- Paleontological organizations object to private auctions due to potential limits on ongoing scientific research access.
The Auction at Sotheby’s and the Debate Over Public Research Access
The skeleton is currently housed at the Sotheby’s headquarters in Manhattan, where it will go on the block on October 27. Fosil tersebut diperkirakan akan terjual antara US$6 juta dan US$9 juta. The Society of Vertebrate Paleontology has raised objections to the commercial sale, arguing that private transactions restrict specimens from public stewardship and hinder detailed scientific analysis for future generations. Cassandra Hatton, the head of science and natural history at Sotheby’s, defended the role of private fossil hunters in recovering specimens that cash-strapped universities and museums might otherwise miss.
Characteristics of Jodi and Comparisons to Tyrannosaurus Rex
Jodi was discovered in 2019 by rancher Jodi Pierson on private land in Montana, a recovery that was featured in the 2020 Discovery Channel documentary series Dino Hunters, according to Kabar6.com. The skeleton displays physical proportions distinct from a mature Tyrannosaurus rex, featuring longer forelimbs, larger claws, and a slender jaw carrying more teeth shaped like knife blades rather than the thick, bone-crushing teeth of a T. rex. Hatton likened the ecological dynamic to modern lions and cheetahs living in the same environment approximately 67 million years ago during the Cretaceous period.

Research Confirms Nanotyrannus as a Distinct Genus
The classification of Nanotyrannus as a distinct genus gained momentum following research published in October 2025, which examined growth rings within preserved bone structures to confirm the specimens reached full adult size rather than juvenile growth stages. Jodi represents one of only three known Nanotyrannus skeletons in existence. The other two reside in public institutions: a specimen nicknamed Bloody Mary, discovered in 2006 alongside a Triceratops and housed at the North Carolina Museum of Natural Sciences, and a third skeleton located at the Burpee Museum of Natural History in Illinois.
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A dinosaur skeleton once thought to belong to a young T. rex is going under the hammer at Sotheby’s New York, with an estimated sale price of $6 million to $9 million.Named “Jodi,” the approximately 67-million-year-old Nanotyrannus went on public display on Tuesday, ahead of… pic.twitter.com/oRF4PxOlV4
Only three Nanotyrannus skeletons are known to exist. Now, #SothebysNewYork has one of them. Its name is Jodi. Come see Jodi in person at the Breuer building in New York from 13 October ahead of the live sale on 27 October. Measuring approximately 6.5-feet-tall when mounted… pic.twitter.com/oMHI8OKdIP
Nano vs. T. Rex has long been a subject of debate in paleontology. Now, thanks to recently published research, we know that Nanotyrannus is not an adolescent T. Rex, but rather a distinct genus of dinosaur. That’s where Jodi comes in.Come meet Jodi at #SothebysNewYork >>… pic.twitter.com/lF8eWgdy5F