Found this washed up on the beach have no idea what it is.
No interactions present.
Looks like it might be a Skate or Ray that has lost most of its 'wings'. A thorny species but I couldn't offer a definite ID.
I'd say there is every likelihood a fisherman has removed the edible wings with a knife and discarded the remains of the carcass. The visible flesh looks quite fresh, ie the cut.
Lat/Lng: 52.3058, 1.6582
OS grid ref: TM494738