Exposed

Only exposed on flat ledges at very low tide, in-situ giant ammonites are a feature of Charmouth's foreshore. The geology is very complicated in this region but as far as I can understand it, these are from the early Jurassic period when warm seas covered much of the UK, almost 200 million years ago.

 

Flickr Explore # 429 on March 20, 2016

 

Done