Rock Edge
Rock Edge is a geological Site of Special Scientific Interest in Oxford in Oxfordshire. It is a Geological Conservation Review site and a Local Nature Reserve
This site exposes limestone rich in coral called Coral rag, laid down when the area was under a warm, shallow sea, similar to the Bahama Banks today. It is rich in fossils derived from the coral reefs. It dates to the Upper Jurassic, around 145 million years ago.