Dung Round Head?

Dung Round Head?

Observation - Dung Round Head? - UK and Ireland. Description: It was a few years ago that I spotted it so it I can only remember what I see from the photo! Can anyone hazzard a guess, or at least which genus it may fit into? It was growing on dung, but I am sure there are many similar to the dung round head. Thank

It was a few years ago that I spotted it so it I can only remember what I see from the photo! Can anyone hazzard a guess, or at least which genus it may fit into?
It was growing on dung, but I am sure there are many similar to the dung round head.
Thank you