
Last ice-age boulderclay overlies the jurassic geology of Runswick Bay.
Top, the hard shale beach with saw wrack (Fucus serratus with Spirorba borealis worms encrusted on their fronds) and in the overhang: barnacles (not up on barnacle species yet), dog whelk (white centre: Nucella lapillus), below it and to the right a periwinkle (Littorina sp.), lurking above and left of the whelk is the limpet Patella intermedia and the green seaweed Ulva lactuca lower right. 
The pliosaur in the Natural History Museum London is merely a cast of one found at Kettleness: the original somehow found its way to Dublin. This one is an original, also found at Kettleness, and esitmated 180 million years old and displayed in all its incomplete glory in Whitby Museum in Pannett Park. They have a fantastic collection of jurassic fossils, most collected within a 10 mile radius of Whitby and a good few from Runswick Bay.