Rocks, fossils, and pebbles on the beach at Seatown in Dorset February 2018. On previous visits to Seatown, I knew that sloping layers of soft rock passed from the base of the cliffs down towards the sea but they were hidden from sight by small pebbles and only visible when the tide went out. On this visit, the pebbles had been shifted around so that a wide band of the grey rock was exposed at mid-shore level. You could see fossils such as belemnites and ammonites embedded in the rock, which was fortunate because fossil rich locations that are normally showing on the lowest part of the cliff had been obscured by recent mud slides and rock falls over winter. Phosphatic nodules (also known as ironstone or sideritic mudstone) could also be seen with the fossils in this part of the Charmouth Mudstone Formation.