Maiasaura Dinosaur Fossils Have Been Listed for Auction
Joopiter is auctioning two rare 76-million-year-old dinosaur fossils discovered in Montana.
Updated on Sept. 25, 2026 in Geology
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The auction house Joopiter has listed a pair of 76-million-year-old Maiasaura dinosaur fossils for sale. The set features both an adult and a juvenile specimen originally discovered in Montana.
Why it matters
The sale provides a unique opportunity for private acquisition of specimens that offer insight into the prehistoric ecosystem of the Two Medicine formation. These well-preserved fossils serve as significant windows into the biological history of the species.
The adult Maiasaura measures 6.3 metres in length and 2.6 metres in height, while the juvenile specimen is 4 metres long and 1.9 metres tall. Both fossils originate from the Two Medicine geological formation in Montana.
The players
Joopiter
Joopiter is an auction house that facilitates the sale of rare items and prehistoric artifacts.
The details
Titled Hank & Koda: Two Maiasaura, the auction features the adult specimen assembled in a walking position with its head lowered. These fossils date back 76 million years and were extracted from the Two Medicine geological formation.
Timeline
The Maiasaura dinosaurs lived 76 million years ago.
The Big Picture
This sale highlights the ongoing evolution of paleontological collection practices within the Two Medicine geological formation research framework. Such auctions continue to define the availability of specimens for study outside of traditional academic institutions.
The sale of these fossils could impact future access to significant specimens for private or museum display. As high-value prehistoric items trade hands, researchers continue to monitor how these transactions affect the broader scientific availability of rare paleontological finds.
The takeaway
Collectors and researchers alike often watch these auctions to gauge the market interest in prehistoric remains. Prospective buyers should consider the logistical requirements for housing and maintaining such massive fossilized specimens.
Further reading
For more information on the history of the region, visit the Geology section.
Source note: This article includes information reported by Greek City Times.
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