a1 4 Green Street, Avebury, Marlborough, Wiltshire SN8 1RE
a2 School of History and Archaeology, University of Wales College of Cardiff, Cardiff CF1 3XU
Radiocarbon dates on samples excavated earlier this century by Gray and Keiller and one more recently by Pitts, confirm that the henge at Avebury is in the same general Late Neolithic horizon as the other great Wessex enclosures of Durrington Walls, Marden and Mount Pleasant. They leave open to interpretation the details of Avebury's sequence. The monument may have been constructed in a series of stages, but further investigation is badly needed.