Downton Castle Sandstone
The Downton Castle Sandstone is a geologic formation in England. It preserves fossils dating back to the Silurian period. As its name would suggest the formation predominantly consists of sandstone with minor siltstone and mudstone. The oldest known Trigonotarbid Palaeotarbus is known from the formation.
| Downton Castle Sandstone | |
|---|---|
| Stratigraphic range: Silurian | |
| Type | Formation |
| Unit of | Old Red Sandstone |
| Sub-units | Lower Bone Bed Member, Platyschisma Shale Member |
| Underlies | Temeside Shale |
| Thickness | 15m in type area; 17m at Ludlow, 15-20m in South Staffordshire |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone, Mudstone |
| Location | |
| Region | England |
| Country | United Kingdom |
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