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.^[1] The oldest known Trigonotarbid Palaeotarbus is known from the formation.

Downton Castle Sandstone
Stratigraphic range: Silurian Pridoli PreꞒ Ꞓ O S D C P T J K Pg N ↓
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

See also

• Earth sciences portal
• England portal
• Paleontology portal

• Grey Downtonian
• List of fossiliferous stratigraphic units in England