Discovered in South Dakota in 1987, Stan is roughly 67 million years old and about 80% complete by bone count.
That makes it one of the best-preserved T. rex specimens ever unearthed, and a fixture of paleontology research for decades before its sale.
Christie's sold it in 2020 for $31.8 million, smashing every previous fossil auction record.
The buyer was later revealed to be a new natural history museum being built in Abu Dhabi — meaning one of science's most studied dinosaurs is now, quite literally, private property.
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