Diplodocus fossil 150 million years old auctioned in UK
27 November 2013 Last updated at 00:12 GMT
Have you ever wanted your very own dinosaur?
Up for auction in the UK is the almost complete fossil of a diplodocus - the extremely large, long-necked dinosaur from the late Jurassic period.
It is expected to reach more than £500,000 (US$800,000) when it is sold on Wednesday.
BBC science correspondent Rebecca Morelle spoke to Errol Fuller, the curator at Summers Place Auctions in West Sussex.