A huge dinosaur skeleton found in the U.S. has fetched about $650,000 US at an auction in England.

The female Diplodocus longus skeleton, nicknamed Misty, measures 17 metres long and six metres tall. The Diplodocus dinosaur last roamed Earth more than 150 million years ago

Summers Place Auctions said the skeleton was rare because it was found mostly intact near a quarry in Wyoming by accident. The skeleton was treated at a fossil laboratory in the Netherlands before it was assembled in Britain.

The auction house, in southern England's West Sussex, said Wednesday the buyer is an unnamed institution that would put the skeleton on public display.