A rare Tyrannosaurus rex skeleton nicknamed “Gus” sold for a record $50.1 million at Sotheby’s in New York, becoming the most expensive fossil ever auctioned.

A rare Tyrannosaurus rex skeleton nicknamed “Gus” sold for a record $50.1 million at Sotheby’s in New York, becoming the most expensive fossil ever auctioned. The 67-million-year-old specimen from South Dakota measures 38 feet long and is about 61% complete by bone count. Its private sale has raised concerns that this important fossil could become inaccessible to scientists and the public.Did you know? 🎓