I can’t give an ID but I’d say Pleistocene is more likely from the appearance. I’ve had Pleistocene material from lavernock and it is known. I seem to recall the deposits are offshore?
Ah ok, that makes sense. Thanks for the reply!
Back in January I found something similar. I'll try and post it here too. I found it in the same sort of area as this one, so perhaps they come from the same animal.