Found this Ammonite in gault clay whilst walking my friends dog, It had been exposed when the sand had been washed away by a storm the previous night. It was well over a foot in diameter, Having my friends dog & no tools I left it and hoped to return the following day with my kit. However when I returned to the area the following morning the whole beach had been re-buried in several feet of sand and I could not locate it. I hope to get the chance again one day when the conditions are right.