What is the most interesting fossil you have found?

Question: What is the most interesting fossil you have found?
- Keywords:
  discovery,
  fossil,
  work
Asked by to Phillip on 19 Jun 2014. This question was also asked by .
- Phillip Manning answered on 19 Jun 2014:
  
  The most interesting fossil was that of a mummified dinosaur that we dug-up from the Late Cretaceous aged Hell Creek Formation in South Dakota, USA. I made a TV show about the dinosaur with National Geographic and also Channel 4.

Question: What is the most interesting fossil you have found?