"Fossilised Dinosaur Dung"
Coprolites were mined in Bedfordshire and adjacent counties,
including the very north of Hertfordshire. They contained a high level of
phosphorous and where made into fertilizer.
For a very useful background to the subject see the extensive
account of the parish of Everton, near Sandy, Bedfordshire, which includes
significant information on, and further web links to, coprolites and the
relevant geology. The original web site has been deleted but a version is
still available on
Page created February 2009, updated June