Topsoil Sandstone with dinosaurs Sandstone with mammal ancestor Sandstone containing otrified trees, leaves and erns Sandstone containing fish Section A Topsoil Sandstone with mammal ancestor Sandstone containing fish Sandstone with trilobites Topsoil Sandstone containg fish Sandstone with trilobites Sandstone containing sea-lillies Sandstone containing sea- lillies Section C mudstone containing bivalves eg oysters Section B Sencord 4.1 Which are the youngest fossils and in what type do they occur? (2) 4.2 Were the youngest sediments mentioned in QUESTION 4.1 deposited in the sea or in land? Explain your answer. (3) 4.3 Which is the oldest fossil and in what rock type do they occur? (2) 4.4 Sections A, B and C are different. Explain why and how the layers have changed from one cliff face to the next. (5)
