GSSP for the base of the Sinemurian
type: Thing
description: global boundary stratotype section and point for the base of the Sinemurian Stage
additional property: PropertyValue
  property ID: P17
  value: United Kingdom
additional property: PropertyValue
  property ID: P18
  value: Cliff Face East Quantoxhead - geograph.org.uk - 1003272.jpg
additional property: PropertyValue
  property ID: P31
  value: Global Boundary Stratotype Section and Point
additional property: PropertyValue
  property ID: P131
  value: East Quantoxhead
additional property: PropertyValue
  property ID: P527
  value: Sinemurian
additional property: PropertyValue
  property ID: P527
  value: Hettangian
additional property: PropertyValue
  property ID: P790
  value: International Union of Geological Sciences
additional property: PropertyValue
  property ID: P790
  value: International Commission on Stratigraphy
additional property: PropertyValue
  property ID: P973
  value: https://stratigraphy.org/gssps/sinemurian
additional property: PropertyValue
  property ID: P1343
  value: Global Stratotype Section and Point for base of the Sinemurian Stage (Lower Jurassic)
additional property: PropertyValue
  property ID: P7959
  value: Somerset
confidence:
  popularity graph score:
    score: 0.0
    score pct: 0
    tier: long_tail
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 2
      unique citations norm: 0.001
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
  unique citations: 2
  monthly pageviews: 0
  yearly pageviews: 0
  tier: long_tail
claims:
  P17:
    value: Q145
    source count: 0
    confidence: 0.0
    value label: United Kingdom
  P18:
    value: Cliff Face East Quantoxhead - geograph.org.uk - 1003272.jpg
    source count: 0
    confidence: 0.0
  P31:
    value: Q37402
    source count: 1
    confidence: 0.2
    value label: Global Boundary Stratotype Section and Point
  P131:
    value: Q2411043
    source count: 0
    confidence: 0.0
    value label: East Quantoxhead
  P527:
    value: Q911869
    source count: 0
    confidence: 0.0
    value label: Sinemurian
  P527:
    value: Q633834
    source count: 0
    confidence: 0.0
    value label: Hettangian
  P625:
    value:
      globe: http://www.wikidata.org/entity/Q2
      latitude: 51.1909
      longitude: -3.2364
      precision: 0.0001
    source count: 1
    confidence: 0.2
  P790:
    value: Q579663
    source count: 1
    confidence: 0.2
    value label: International Union of Geological Sciences
    qualifiers:
      P585: +2000-08-00T00:00:00Z
  P790:
    value: Q402104
    source count: 1
    confidence: 0.2
    value label: International Commission on Stratigraphy
  P973:
    value: https://stratigraphy.org/gssps/sinemurian
    source count: 0
    confidence: 0.0
  P1343:
    value: Q127232404
    source count: 0
    confidence: 0.0
    value label: Global Stratotype Section and Point for base of the Sinemurian Stage (Lower Jurassic)
  P7959:
    value: Q67461071
    source count: 0
    confidence: 0.0
    value label: Somerset
meta:
  wikidata id: Q134308334
  domain: global_boundary_stratotype_section_and_point
  level: standard
  html url: https://4ort.xyz/entity/gssp-for-the-base-of-the-sinemurian
  markdown url: https://4ort.xyz/entity/gssp-for-the-base-of-the-sinemurian.md
  facts url summary: https://4ort.xyz/entity/gssp-for-the-base-of-the-sinemurian/facts.json
  facts url standard: https://4ort.xyz/entity/gssp-for-the-base-of-the-sinemurian/facts.json
  facts url full: https://4ort.xyz/entity/gssp-for-the-base-of-the-sinemurian/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-02T05:39:56.666976Z
  entity updated at: 2026-05-03T21:19:00.258443+00:00Z
  entity created at: 2026-05-03T15:20:13.859450+00:00Z