Found this whilst beachcombing - regular rings visible - any clues?
No identification made yet.
No interactions present.
Possibly a lichen (from a very old memory Graphis scripta comes to mind)try resubmitting on to the fungi and lichen section where you get a different class of people helping!!
Cheers for the advice mark! - will resubmit
Lat/Lng: 52.5, -4.1
OS grid ref: SN5899