On Wednesday, as part of its annual Geek Week, Sotheby’s will attempt to sell a 150mn-year-old treasure: a stegosaurus that was unearthed in Colorado last year, nicknamed “Apex”.
It is about 11ft tall and 27ft long, and impressively complete at between 79 and 83 per cent. It even includes portions of the skull — a particular rarity for this species as it is so small and fragile.
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