|   | 
Locality | 
Layer | 
 
 | 
Great Britain, England,Cheshire, Congleton Edge | 
H | 
 
 | 
Great Britain, England,Cumberland, Bigrigg | 
G1 | 
 
 | 
Great Britain, England,Cumberland, Caldbeck | 
P1a | 
 
 | 
Great Britain, England,Derbyshire, Castleton, Treak Cliff | 
B2 - P1a | 
 
 | 
Great Britain, England,Derbyshire, Glutton Bridge | 
E2 | 
 
 | 
Great Britain, England,Derbyshire, Mam Tor | 
R1 | 
 
 | 
Great Britain, England,Derbyshire, Mam Tor | 
upper E2 | 
 
 | 
Great Britain, England,Devonshire, Bampton | 
P1d | 
 
 | 
Great Britain, England,Isle of Man, Poolvash | 
B2 | 
 
 | 
Great Britain, England,Lancashire, Clitheroe Castle | 
B1 | 
 
 | 
Great Britain, England,Lancashire, Colne Valley, Rough Lee | 
R1 | 
 
 | 
Great Britain, England,Lancashire, Culvert Clough | 
R1 | 
 
 | 
Great Britain, England,Lancashire, Dinckley, River Ribble | 
181 feet | 
 
 | 
Great Britain, England,Lancashire, Dinckley, River Ribble | 
268 feet | 
 
 | 
Great Britain, England,Lancashire, Dinckley, River Ribble | 
P1a | 
 
 | 
Great Britain, England,Lancashire, Dry Clough | 
R1 | 
 
 | 
Great Britain, England,Lancashire, Hodder River | 
B1 | 
 
 | 
Great Britain, England,Lancashire, Holcombe, Royshaw brickyard | 
G1 | 
 
 | 
Great Britain, England,Lancashire, Otley, Carr Banks Gill | 
E2a | 
 
 | 
Great Britain, England,Lancashire, Otley, Farnley Park | 
E2a | 
 
 | 
Great Britain, England,Lancashire, Rams Clough | 
R1 | 
 
 | 
Great Britain, England,Lancashire, Redwater Clough | 
G1 | 
 
 | 
Great Britain, England,Lancashire, Sales Wheel, River Ribble | 
E2 | 
 
 | 
Great Britain, England,Northumberland, Redesdale | 
P1a | 
 
 | 
Great Britain, England,Staffordshire, Oakamoor | 
R1 | 
 
 | 
Great Britain, England,Staffordshire, Wetton | 
P1a | 
 
 | 
Great Britain, England,Yorkshire, Bolland, Black Hall | 
B2 - P1a | 
 
 | 
Great Britain, England,Yorkshire, Bolton Abbey Station, 0,75 mls. SE of | 
E1 | 
 
 | 
Great Britain, England,Yorkshire, Bolton Abbey, Kex Gill | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Burnsall, Keal Hill | 
B2 | 
 
 | 
Great Britain, England,Yorkshire, Colsterdale | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Cowling, Gill Beck, Crosshills | 
H | 
 
 | 
Great Britain, England,Yorkshire, Cowling, Gill Beck, Warley Wise Bridge | 
E2a | 
 
 | 
Great Britain, England,Yorkshire, Cowling, Gill Beck, above Stonehead Farm | 
H | 
 
 | 
Great Britain, England,Yorkshire, Cowling, Gill Beck, below Stonehead Farm | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Cracoe, Stebden Hill | 
B2 | 
 
 | 
Great Britain, England,Yorkshire, Cracoe,Elbolton | 
B2 | 
 
 | 
Great Britain, England,Yorkshire, Glassington | 
B2-P1a | 
 
 | 
Great Britain, England,Yorkshire, Grassington, Elbolton | 
P1a | 
 
 | 
Great Britain, England,Yorkshire, Halifax, Rishworth, Butts Clough | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Hebden Bridge, High Green Wood | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Hebden Bridge, Mare Greave Clough | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Hebden Bridge, Outwood, Crimsworth Dean | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Hebden Bridge, Rag Clough | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Hebden Bridge, Sun Hill Clough | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Henless Beck, Meughter Fell | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Holmfirth, Holme, Rake Dike | 
R1, 1150feet | 
 
 | 
Great Britain, England,Yorkshire, Holmfirth, Holme, Rake Dike | 
R1, 1250 ft | 
 
 | 
Great Britain, England,Yorkshire, Holmfirth, Ramsden Clough | 
R2 | 
 
 | 
Great Britain, England,Yorkshire, Keighley, Withins Scar, Haworth | 
G1 | 
 
 | 
Great Britain, England,Yorkshire, Leeds, Meanwood boring | 
G1 | 
 
 | 
Great Britain, England,Yorkshire, Leighton Reservoir borehole | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Luddenden Valley, Castle Carr Tunnel | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Malham, Black Hole | 
P1b | 
 
 | 
Great Britain, England,Yorkshire, Malham, Cow Close Sike | 
E1 | 
 
 | 
Great Britain, England,Yorkshire, Malham, Moor Close Gill | 
E1 | 
 
 | 
Great Britain, England,Yorkshire, Malham, Moor Close Gill | 
P1a ? | 
 
 | 
Great Britain, England,Yorkshire, Meltham, Brow Grains | 
R2 | 
 
 | 
Great Britain, England,Yorkshire, Otley, Weston Beck | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Pike Clough, Rishworth, Halifax | 
Marine band,Middle Grit Grp.,Millstone | 
 
 | 
Great Britain, England,Yorkshire, Pule Hill | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Pule Hill | 
R1, 50 ft higher | 
 
 | 
Great Britain, England,Yorkshire, Rylstone | 
P1a | 
 
 | 
Great Britain, England,Yorkshire, Saltaire Boring | 
R1, 442 ft | 
 
 | 
Great Britain, England,Yorkshire, Settle, Scaleber Gorge | 
B2 | 
 
 | 
Great Britain, England,Yorkshire, Silsden, Holden Gill | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Silsden, Marchup | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Silsden, Throstle Nest | 
E2 | 
 
 | 
Great Britain, England,Yorkshire, Skipton, Cononley Beck | 
E2a | 
 
 | 
Great Britain, England,Yorkshire, Strines Edge, Raddle Pit Rushes | 
R1 | 
 
 | 
Great Britain, England,Yorkshire, Todmorden, Eastwood | 
H | 
 
 | 
Great Britain, England,Yorkshire, Todmorden, Lob Wood | 
H | 
 
 | 
Great Britain, England,Yorkshire, Todmorden, Millwood | 
H | 
 
 | 
Great Britain, England,Yorkshire, Todmorden, Oak Hill Clough | 
upper E2 | 
 
 | 
Great Britain, England,Yorkshire, Todmorden, Pennant Clough | 
upper E2 | 
 
 | 
Great Britain, England,Yorkshire, Todmorden, Woodhouse, Lumbutts Clough | 
R1 | 
 
 | 
Ireland (Northern), Fermanagh Co., Enniskillen, Kulkeagh | 
H | 
 
 | 
Ireland, Clare Co., Cliffs of Moher | 
R1 | 
 
 | 
Ireland, Clare Co., Lisdoonvarna | 
lower Clare Shales, Homoceras Z. | 
 
 | 
USA, Indiana, Brown County, unrecorded | 
Visean |