Wealden Group
Formations: unnamed (47), Ashdown (29), Baudour Clays (1), Hastings Beds (2), Sainte-Barbe Clays (1), Tunbridge Wells Sand (21), Vectis (16), Wadhurst Clay (28), Weald Clay (50), Wessex (71)
Lithologies: not reported (88), "siliciclastic" (3), claystone (56), mudstone (32), "shale" (5), siltstone (21), sandstone (65), conglomerate (12), marl (8), "limestone" (3), lignite (1), bituminous coal (1), ironstone (1)
Paleoenvironments: marine indet. (8), terrestrial indet. (176), peritidal (1), lagoonal/restricted shallow subtidal (4), marginal marine indet. (6), coastal indet. (2), estuary/bay (4), lagoonal (15), delta plain (1), prodelta (1), transition zone/lower shoreface (1), fluvial indet. (9), alluvial fan (1), coarse channel fill (1), wet floodplain (5), "floodplain" (2), crevasse splay (10), levee (1), fluvial-lacustrine indet. (4), lacustrine - small (7), pond (6), lacustrine indet. (1)