| 词条 | Otter Sandstone Formation |
| 释义 |
| name = Otter Sandstone Formation (OS)[1] | image = | caption = | type = Formation | age = Triassic, Anisian[1] | period = Anisian | prilithology = | otherlithology = | namedfor = | namedby = | region = England | country = United Kingdom | coordinates = | unitof = Sherwood Sandstone Group (SSG)[1] | subunits = | underlies = In coastal exposures, transitional into overlying Mercia Mudstone.[1] | overlies = Budleigh Salterton Pebble Beds[1] | thickness = Coast and Exeter district: c.160m. Taunton district: 30 to 60m [1] | extent = | area = | map = | map_caption = }} 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. See also{{Portal|Earth sciences|England|Paleontology|Triassic|Mesozoic}}
References1. ^1 2 3 4 5 http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=OS (BGS on-line lexicon of rock units) {{UK-geologic-formation-stub}}{{Triassic-stub}}{{England-stub}}2. ^http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=HEY (BGS on-line lexicon of rock units) 2 : Triassic England|Sandstone formations |
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