Locality	Layer
	Great Britain, England,Lancashire, Bull Hill summit	Above Hazel Greave Grit,Sigma bed
	Great Britain, England,Lancashire, Cheesden Brook	Above Hazel Greave Grit, early gamma bed
	Great Britain, England,Lancashire, Green's Clough W. Portsmouth	Above Hazel Greave Grit,Sigma bed
	Great Britain, England,Lancashire, Hall Wood,Longworth Valley	Above Hazel Greave Grit, early gamma bed
	Great Britain, England,Lancashire, Helmshore Station,730 m NW of	Above Hazel Greave Grit,early gamma bed
	Great Britain, England,Lancashire, Higher Hempshaws,3.5 km W of Belmont	Above Hazel Greave Grit,Sigma bed
	Great Britain, England,Lancashire, Hodge Clough,Ramsbottom	Above Hazel Greave Grit,early gamma bed
	Great Britain, England,Lancashire, Knowsley Embankment	Above Hazel Greave Grit,Sigma bed
	Great Britain, England,Lancashire, Ramsden Wood,Walsden	Above Hazel Greave Grit,Sigma bed
	Great Britain, England,Lancashire, Royshaw Brick,1600m N Blackburn	Above Hazel Greave Grit, early gamma bed
	Great Britain, England,Lancashire, Ryal Fold	Above Hazel Greave Grit,Sigma bed
	Great Britain, England,Lancashire, Tower Clough,SE Portsmouth	Above Hazel Greave Grit, Sigma bed
	Great Britain, England,Lancashire, Vale Mill, Waterfoot	Above Hazel Greave Grit,Sigma bed