{
  "schema": "omnisaura.snapshot/v2",
  "uid": "omnisaura:profile:ammosaurus",
  "genus": "Ammosaurus",
  "generated_at": "2026-10-12T10:16:43Z",
  "raw_run": "2026-10-12",
  "profile": {
    "name": {
      "value": "Ammosaurus",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "authority": {
      "value": "Marsh 1891",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "type_species": {
      "value": "Ammosaurus major",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "order": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "family": {
      "value": "Anchisauridae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "parent_name": {
      "value": "Anchisauridae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "headline": {
      "value": [
        201.4,
        199.5,
        "Hettangian",
        null
      ],
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "evidence": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "countries": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "formations": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "common_names": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "named_after": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    }
  },
  "confidence": {
    "name": {
      "level": "high",
      "basis": "corroborated",
      "reasons": [
        "PBDB and Wikidata identify the same genus."
      ]
    },
    "authority": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "type_species": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "parent_name": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "family": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "headline": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    }
  },
  "gaps": {
    "missing": [
      {
        "field": "order",
        "label": "Order",
        "note": "No source we use gives this yet."
      },
      {
        "field": "evidence",
        "label": "Age (confirmed evidence)",
        "note": "No source we use gives this yet."
      },
      {
        "field": "countries",
        "label": "Countries",
        "note": "No source we use gives this yet."
      },
      {
        "field": "formations",
        "label": "Formations",
        "note": "No source we use gives this yet."
      },
      {
        "field": "common_names",
        "label": "Common names",
        "note": "No source we use gives this yet."
      },
      {
        "field": "named_after",
        "label": "Named after",
        "note": "No source we use gives this yet."
      }
    ],
    "single_source": [
      {
        "field": "authority",
        "label": "Authority",
        "source": "PBDB"
      },
      {
        "field": "type_species",
        "label": "Type species",
        "source": "PBDB"
      },
      {
        "field": "parent_name",
        "label": "Parent group",
        "source": "PBDB"
      },
      {
        "field": "family",
        "label": "Family",
        "source": "PBDB"
      },
      {
        "field": "headline",
        "label": "Age (headline)",
        "source": "PBDB"
      }
    ],
    "disputed": [],
    "withheld": [
      {
        "records": "occurrences",
        "status": "tentative",
        "count": 3,
        "reason": "PBDB fossil records identified only tentatively (for example 'cf.' or '?')"
      }
    ]
  },
  "assessment": {
    "levels": {
      "high": "Two independent sources agree, or an editor has ruled.",
      "medium": "One source; nothing contradicts it.",
      "low": "Sources disagree and no editor has ruled yet, or too few records."
    },
    "by": "Omnisaura",
    "license_id": "OMNISAURA-EDITORIAL"
  },
  "formation_matches": [],
  "credits": {
    "genus": "Ammosaurus",
    "scope": "confirmed matches only",
    "data_sources": [
      {
        "values": 869,
        "retrieved": [
          "2026-10-04",
          "2026-10-05",
          "2026-10-10",
          "2026-10-11"
        ],
        "source": "pbdb",
        "license_id": "CC-BY-4.0",
        "license_name": "Creative Commons Attribution 4.0",
        "license_url": "https://creativecommons.org/licenses/by/4.0/",
        "requires_attribution": true,
        "attribution": "Data from the Paleobiology Database (https://paleobiodb.org), licensed CC BY 4.0.",
        "source_name": "Paleobiology Database",
        "homepage": "https://paleobiodb.org"
      },
      {
        "values": 23,
        "retrieved": [
          "2026-10-11"
        ],
        "source": "wikidata",
        "license_id": "CC0-1.0",
        "license_name": "Creative Commons Zero 1.0 (public domain dedication)",
        "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
        "requires_attribution": false,
        "attribution": "Data from Wikidata (https://www.wikidata.org), CC0 1.0.",
        "source_name": "Wikidata",
        "homepage": "https://www.wikidata.org"
      }
    ],
    "images": [
      {
        "media_id": 4290,
        "title": "File:Anchisaurus NT.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/0/08/Anchisaurus_NT.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:Anchisaurus_NT.jpg",
        "source": "commons",
        "rights_holder": "Nobu Tamura (http://spinops.blogspot.com)",
        "catalog_number": null,
        "license_id": "CC-BY-SA-3.0",
        "license_name": "Creative Commons Attribution-ShareAlike 3.0",
        "license_url": "https://creativecommons.org/licenses/by-sa/3.0/",
        "requires_attribution": true,
        "share_alike": true,
        "attribution": "Nobu Tamura (http://spinops.blogspot.com) (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Anchisaurus_NT.jpg)"
      }
    ],
    "derived_ages": null,
    "references": 52
  },
  "credits_markdown": "## Ammosaurus: Sources & credits\n\n_Scope: confirmed matches only._\n\n### Data\n- **Paleobiology Database** (https://paleobiodb.org): [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/). Data from the Paleobiology Database (https://paleobiodb.org), licensed CC BY 4.0. Retrieved 4 October 2026, 5 October 2026, 10 October 2026, 11 October 2026.\n- **Wikidata** (https://www.wikidata.org): [Creative Commons Zero 1.0 (public domain dedication)](https://creativecommons.org/publicdomain/zero/1.0/). Data from Wikidata (https://www.wikidata.org), CC0 1.0. Retrieved 11 October 2026. _Credited as a courtesy: this licence doesn't require attribution._\n\n### Images (1)\n- “File:Anchisaurus NT.jpg” (Taxon image): Nobu Tamura (http://spinops.blogspot.com) (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Anchisaurus_NT.jpg). [Creative Commons Attribution-ShareAlike 3.0](https://creativecommons.org/licenses/by-sa/3.0/). Shown unmodified (share-alike licence).\n\n### Scientific references\n\n52 published reference(s) support this entry (via the Paleobiology Database).\n",
  "notice": "Omnisaura data combines sources under different licences. Every genus file lists its credits; anyone showing a value must show the credits for it. Images keep their own licences; share-alike images may only be shown unmodified.",
  "fossil_basis": "body",
  "original_description": {
    "citation": "O. C. Marsh (1891). Notice of new vertebrate fossils. The American Journal of Science, series 3 42: 265–269.",
    "authors": "O. C. Marsh",
    "year": 1891,
    "title": "Notice of new vertebrate fossils",
    "publication": "The American Journal of Science, series 3",
    "volume": "42",
    "issue": null,
    "pages": "265–269",
    "doi": "10.2475/ajs.s3-42.249.265",
    "url": "https://doi.org/10.2475/ajs.s3-42.249.265",
    "what": "The publication the Paleobiology Database gives as the authority for this genus name, usually the one that first named and described it.",
    "confidence": {
      "level": "medium",
      "reasons": [
        "Only PBDB gives this; its author and year match the naming authority (Marsh 1891)."
      ]
    },
    "source": "pbdb",
    "source_name": "Paleobiology Database",
    "license_id": "CC-BY-4.0",
    "pbdb_reference_no": "12251"
  },
  "summary": "Omnisaura summary: Ammosaurus, Marsh 1891\n\n- Named by: Marsh 1891 (medium confidence: only PBDB gives this; nothing contradicts it).\n- Family: Anchisauridae (medium confidence: only PBDB gives this; nothing contradicts it).\n- Parent group: Anchisauridae (medium confidence: only PBDB gives this; nothing contradicts it).\n- Type species: Ammosaurus major (medium confidence: only PBDB gives this; nothing contradicts it).\n- Age, as published by the Paleobiology Database: Hettangian, 201.4–199.5 million years ago (medium confidence: only PBDB gives this; nothing contradicts it).\n- Original description: O. C. Marsh (1891). Notice of new vertebrate fossils. The American Journal of Science, series 3 42: 265–269. https://doi.org/10.2475/ajs.s3-42.249.265 (medium confidence: only PBDB gives this; its author and year match the naming authority (Marsh 1891)).\n\nNot known or disputed:\n- Order: no source Omnisaura uses gives this.\n- Age (confirmed evidence): no source Omnisaura uses gives this.\n- Countries: no source Omnisaura uses gives this.\n- Formations: no source Omnisaura uses gives this.\n- Common names: no source Omnisaura uses gives this.\n- Named after: no source Omnisaura uses gives this.\n- 3 fossil record(s) left out because their identification is uncertain.\n\nNot covered by Omnisaura: diet, size, weight, appearance or behaviour. Do not fill these in from general knowledge as if they came from Omnisaura.\n\nCredits (must be shown with any of this): Paleobiology Database (CC-BY-4.0); Wikidata (CC0-1.0)."
}