Wealden Group

The Wealden Group is a group (a sequence of rock strata) in the lithostratigraphy of southeastern England. The Wealden group consists of paralic to continental facies sedimentary rocks of Valanginian to Barremian age and thus forms part of the English Lower Cretaceous. It is composed of alternating sands and clays. The Wessex Formation and overlying Vectis Formation are the two formations within the Wealden Group.

The group forms outcrops covering a large part of south and south-eastern England including the Isle of Wight. It takes its name from the Weald region of Kent, Sussex, Surrey and Hampshire. It has yielded many fossils, including dinosaurs like Iguanodon and Hypsilophodon.