8 Feb 2015
Back end of a belemnite: the experts are baffled.
This is a belemnite guard counterpart (the imprint of a fossil) with something imprinted into the surrounding shale - preserved soft tissue, I wondered? It was picked up from a cliff-fall on the beach north of Runswick Bay.
I sent a pic to the Natural History Museum in London, and their expert referred it on to the uber-expert in this fossiliferous field. His reply was a 'not sure', but it didn't look like the preserved belemnite soft tissue of his acquaintance. I was advised that someone will need to look at the thing in person. It's not the intact pliosaur skeleton (new species, naturally) I've been hoping for, but temporarily baffling expert Ph.D.s and eminent Profs will do for now.
Update: Uber expert says it's not like any fossilised mantle he's seen, and may be nothing to do with a belemnite.
Update 2: This is a repost from 2008, when Google ate a lot of my pics.