GSSP for the base of the Piacenzian
type: Thing
description: type locality for Zanclean/Piacenzian boundary
additional property: PropertyValue
  property ID: P17
  value: Italy
additional property: PropertyValue
  property ID: P31
  value: Global Boundary Stratotype Section and Point
additional property: PropertyValue
  property ID: P131
  value: Porto Empedocle
additional property: PropertyValue
  property ID: P527
  value: Piacenzian
additional property: PropertyValue
  property ID: P527
  value: Zanclean
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/#neogene
additional property: PropertyValue
  property ID: P2671
  value: /g/1hc0gbn6r
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: Q38
    source count: 0
    confidence: 0.0
    value label: Italy
  P31:
    value: Q37402
    source count: 1
    confidence: 0.2
    value label: Global Boundary Stratotype Section and Point
  P131:
    value: Q432311
    source count: 0
    confidence: 0.0
    value label: Porto Empedocle
  P527:
    value: Q514873
    source count: 0
    confidence: 0.0
    value label: Piacenzian
  P527:
    value: Q146094
    source count: 0
    confidence: 0.0
    value label: Zanclean
  P625:
    value:
      globe: http://www.wikidata.org/entity/Q2
      latitude: 37.28888889
      longitude: 13.49333333
      precision: 1e-05
    source count: 2
    confidence: 0.4
  P790:
    value: Q579663
    source count: 0
    confidence: 0.0
    value label: International Union of Geological Sciences
  P790:
    value: Q402104
    source count: 0
    confidence: 0.0
    value label: International Commission on Stratigraphy
  P973:
    value: https://stratigraphy.org/gssps/#neogene
    source count: 0
    confidence: 0.0
  P2671:
    value: /g/1hc0gbn6r
    source count: 0
    confidence: 0.0
meta:
  wikidata id: Q1487074
  domain: global_boundary_stratotype_section_and_point
  level: standard
  html url: https://4ort.xyz/entity/gssp-for-the-base-of-the-piacenzian
  markdown url: https://4ort.xyz/entity/gssp-for-the-base-of-the-piacenzian.md
  facts url summary: https://4ort.xyz/entity/gssp-for-the-base-of-the-piacenzian/facts.json
  facts url standard: https://4ort.xyz/entity/gssp-for-the-base-of-the-piacenzian/facts.json
  facts url full: https://4ort.xyz/entity/gssp-for-the-base-of-the-piacenzian/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-06T11:31:07.071626Z
  entity updated at: 2026-05-03T21:19:00.258443+00:00Z
  entity created at: 2026-05-03T14:20:18.928699+00:00Z