This fossiliferous site exposes rocks of the marine Red Crag Formation, with a megaripple sequence showing the gradual reduction in depth of the sea.[4] The Red Crag spans the end of the Pliocene around 2.6 million years ago and the start of the succeeding Pleistocene.[5]
^Brenchley, Patrick J.; Rawson, Peter F., eds. (2006). The Geology of England and Wales (2nd ed.). The Geological Society. pp. 432–434. ISBN1-86239-200-5.