VI.—The Zone of Offaster pilula in the South English Chalk

Abstract

The zone of offaster pilula is probably exposed on the coast in West Sussex on the foreshore near Bognor, but the nearest cliff exposures to those of East Sussex are those of the Isle of Wight, at Culver Cliff and Scratchells Bay. In both of these the Chalk is so highly inclined that only a very small area of each bed can be reached; and the condition of the accessible surface is such as to make it most improbable that anything beyond the broad outlines of the subzone of abundant O. pilula, which is the key and pith of the zone of O. pilula, will be detected.