Otter Sandstone Formation

Otter Sandstone Formation (OS)[1]
Stratigraphic range: Anisian
Exposures of Otter Sandstone at Ladram Bay, Devon, England
TypeFormation
Unit ofSherwood Sandstone Group (SSG)[1]
UnderliesIn coastal exposures, transitional into overlying Mercia Mudstone.[1]
OverliesBudleigh Salterton Pebble Beds[1]
ThicknessCoast and Exeter district: ~160 m (520 ft)
Taunton district: 30–60 m (98–197 ft)
Location
RegionEngland
Country United Kingdom

The Otter Sandstone Formation is an obsolete geological unit in England, now referred to as the Helsby Sandstone Formation.[2] It preserves fossils dated to the Triassic, Anisian period.

  1. ^ a b c d http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=OS (BGS on-line lexicon of rock units)
  2. ^ http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=HEY (BGS on-line lexicon of rock units)