A group of British Quaternary glacial deposits (see Table 6, page 419). Quite large areas of till, sands and gravels survive outside the area of the later Deven-sian ice-sheet. At the type site in the Midlands, Wolstonian deposits overlie interglacial deposits that have been correlated by pollen analysis with the Hoxnian. The exact age of the Wolstonian is unknown, but it is older than the extreme range of radiocarbon dating (70,000 bp) and can be shown by palaeomagnetism to be younger than 700,000 bp. The Wolstonian deposits appear to represent one cold stage (probably the penultimate). Acheulian and Leval-loisian artefacts have been found in them.
The Macmillan dictionary of archaeology, Ruth D. Whitehouse, 1983Copied