| Lithological Description: |
| Grey to greenish grey, flaggy calcareous siltstone with shelly limestone beds (at Ludlow); upward passage from argillaceous, flaggy limestone to olive-buff shaly mudstone overlain by buff silty sandstone and mudstone (South Staffordshire). |
| Definition of Lower Boundary: |
| Above lithological change from limestone to calcareous siltstone (at Ludlow) (Holland and others 1963); Top of highest nodular limestone of Aymestry limestone. (South Staffordshire) |
| Definition of Upper Boundary: |
| Base of cross bedded sandstone of Downton Castle Sandstone; locally at base of Ludlow Bone Bed. |
| Thickness: |
| 9-55m: 9-15m South Staffordshire; 55m Ludlow. |
| Geographical Limits: |
| West Midlands and Welsh Borders. |
| Stratotypes: |
| Reference Section |
[Holland, Lawson and Walmsley, 1963, locality 6] Old quarry face, south (right) bank of River Teme, 260m west of Ludford Bridge. |
| Partial Type Section |
[Holland, Lawson and Walmsley, 1963, locality 3] SW (right) bank River Teme, cliff section 170m south of Dinham Bridge. |
| Partial Type Section |
[White and Lawson, 1978, locality 839] Deer Park road section, Mortimer Forest. |
| Partial Type Section |
[Holland, Lawson and Walmsley, locality 7] Whitcliffe Road (`Ludford Lane') section exposing uppermost strata below the Ludlow Bone Bed. |
| Reference Section |
[Whitehead and Pocock, 1947, p.17-18] Mineral railway cutting, adjacent to Lodge Farm Reservoir, Saltwells. |
| Reference(s): |
| White, D E and Lawson, J D, 1978. The stratigraphy of new sections in the Ludlow Series of the type area, Ludlow, Salop, England. Report of the Institute of Geological Science, 78/30, 1-10. |
| Holland, C H, Lawson, J D and Walmsley, V G, 1963. The Silurian Rocks of the Ludlow District, Shropshire. Bulletin of the British Museum (Natural History), Geology Series. (London: British Museum (Natural History)). 93-171. |
| Whitehead, T H and Pocock, R W, 1947. Dudley and Bridgnorth. Memoir of the Geological Survey of Great Britain. |
| Cocks, L R M, Holland, C H, Rickards, R B and Strachan, I, 1971. A correlation of Silurian rocks in the British Isles. Geological Society of London, Special Report No.1. |
| Lawson, J D and White, D E, 1989. The Ludlow Series in the Ludlow area, 73-90 in A global standard for the Silurian system. Holland, C H and Bassett, M G (editors). (Cardiff: National Museum of Wales). |
| Whitehead, T H and Eastwood, T, 1927. The geology of the southern part of the South Staffordshire Coalfield. Memoir of the Geological Survey of Great Britain. |
| Cocks, L R M, Holland, C H and Rickards, R B, 1992. A revised correlation of Silurian rocks in the British Isles. Geological Society of London Special Report, 21, 142, 32.pp. |
| Holland, C H, Lawson, J D, Walmsley, V G and White, D E, 1980. Ludlow stages. Lethaia, Vol.13, 268. |
| Holland, C H, Lawson, J D and Walmsley, V G, 1959. A revised classification of the Ludlovian succession at Ludlow. Nature, London, 1037-1039. |
