Locality	Layer
	Great Britain, England,Cornwall, Bude, Sandimouth	Bude Sandston, Westfal A
	Great Britain, England,Lancashire, Ramsbottom, Fletcher Bank borehole	R2b
	Great Britain, England,Yorkshire, Rombalds Moor, Snail Green No.2 borehole	R2b
	Great Britain, Wales,South, Glamorgan, Margam Park No.1 borehole	Westfal A