In this case the muck is 140 million years old and belongs to a dinosaur from the Jurassic period. At a recent auction held by Bonhams the auctioneers, in New York, a coprolite was sold for almost ??500 ??? twice the expected amount. A coprolite is dinosaur dung that has been fossilised into what is a hard rocky substance. (more)
The Dinosaur Museum News
