There is a bivalve from Danes dyke about size of a 50p piece. What I thought was a gryphea but it is coarser and larger than any I've seen from Filey around 4" long and a 2" horses tooth??? except it is heavy and very stone-like from Boggle hole could be recent but strange place to find recent remains. Another reddish rock piece looks like an infill worm burrow but a round thing at the bottom from Whitby. All erratics I think you call them, foreshore just off the cliffs.
Comments gratefully received.