Retreat of the Late Pliocene and Lower Pleistocene Crag sea Figure 2 A. The palacgocography of early and middle Norwich Crag Formation times. B. The palaeogeography of late Norwich Crag Formation (Weybourne Crag) and Cromer Forest bed Formation times. (After Funnell, 1996) Essex Naturalist (New Series) 18 (2001) 13