paper: 80 x 71 inches (203.2 x 180.3 cm) framed: 81.25 x 72.25 inches (206.4 x 183.5 cm) ...

Nicknamed Apex, the 150-million-year-old skeleton – standing 11 feet (3.3 metres) tall and 27 feet (8.2 metres) long – was sold on Wednesday to an anonymous American buyer, said Sotheby’s.