Bivalve trace fossils (Lockeia) from the Barnes High Sandstone (Wealden Group, Lower Cretaceous) of the Wessex Sub-basin, southern England

Lockeia is described from the upper part of the Barnes High Sandstone Member (Vectis Formation, Wealden Group) of the Isle of Wight, southern England. It is associated with bivalve escape structures and attributed to unionid and corbiculid bivalves. Preservation of the trace fossil and the generating bivalves in probable life position was owing to episodically rapid deposition beneath prograding deltaic sand in a freshwater or oligohaline environment.