{
  "schema": "omnisaura.snapshot/v3",
  "uid": "omnisaura:profile:apatosaurus",
  "genus": "Apatosaurus",
  "data_as_of": "2026-10-05",
  "raw_run": "2026-10-05",
  "profile": {
    "name": {
      "value": "Apatosaurus",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "authority": {
      "value": "Marsh 1877",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "type_species": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "order": {
      "value": "Saurischia",
      "rule": "Gap filled from NHM",
      "rule_id": "merge:gap_fill_nhm",
      "synthesis": false,
      "sources": [
        {
          "source": "nhm",
          "license": "CC0-1.0"
        }
      ]
    },
    "family": {
      "value": "Diplodocidae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "parent_name": {
      "value": "Apatosaurinae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "headline": {
      "value": [
        157.9,
        143.1,
        null,
        null
      ],
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "evidence": {
      "value": [
        157.9,
        143.1
      ],
      "rule": "Omnisaura synthesis: span of confirmed PBDB records",
      "rule_id": "merge:omnisaura_synthesis_confirmed_occurrences",
      "synthesis": true,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "countries": {
      "value": [
        "US"
      ],
      "rule": "Union of all sources (ISO 3166)",
      "rule_id": "merge:union_iso3166",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        },
        {
          "source": "nhm",
          "license": "CC0-1.0"
        }
      ]
    },
    "formations": {
      "value": [
        "Morrison Formation"
      ],
      "rule": "Canonical names, automatic and editor-approved matches applied",
      "rule_id": "merge:canonical_formations",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        },
        {
          "source": "nhm",
          "license": "CC0-1.0"
        }
      ]
    },
    "diet": {
      "value": "herbivore",
      "rule": "PBDB, inferred from a group the genus belongs to",
      "rule_id": "merge:inferred_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "life_habit": {
      "value": "ground dwelling, gregarious",
      "rule": "PBDB, inferred from a group the genus belongs to",
      "rule_id": "merge:inferred_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "common_names": {
      "value": [
        "zh:迷惑龍"
      ],
      "rule": "Wikidata leads",
      "rule_id": "merge:lead_wikidata",
      "synthesis": false,
      "sources": [
        {
          "source": "wikidata",
          "license": "CC0-1.0"
        }
      ]
    },
    "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": "high",
      "basis": "corroborated",
      "reasons": [
        "PBDB and Wikidata agree."
      ]
    },
    "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"
    },
    "order": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only NHM gives this; nothing contradicts it."
      ],
      "source": "NHM"
    },
    "headline": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives a range this precise; NHM's records give only a broader interval, which contains it."
      ],
      "source": "PBDB"
    },
    "evidence": {
      "level": "medium",
      "basis": "synthesis",
      "reasons": [
        "Omnisaura's calculation from 60 confirmed PBDB records."
      ]
    },
    "common_names": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only Wikidata gives this; nothing contradicts it."
      ],
      "source": "Wikidata"
    },
    "diet": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this, and it infers it for the whole of Sauropoda, the group this genus belongs to, not from this genus's own fossils."
      ],
      "source": "PBDB"
    },
    "life_habit": {
      "level": "low",
      "basis": "thin",
      "reasons": [
        "PBDB infers this way of life for the whole of Sauropoda; behaviour is rarely known for one genus."
      ]
    },
    "countries": {
      "level": "high",
      "basis": "items",
      "reasons": [
        "See each entry."
      ],
      "items": [
        {
          "value": "US",
          "level": "high",
          "basis": "corroborated",
          "reasons": [
            "NHM and PBDB both record it."
          ]
        }
      ]
    },
    "formations": {
      "level": "high",
      "basis": "items",
      "reasons": [
        "See each entry."
      ],
      "items": [
        {
          "value": "Morrison Formation",
          "level": "high",
          "basis": "corroborated",
          "reasons": [
            "NHM and PBDB both record it."
          ]
        }
      ]
    }
  },
  "gaps": {
    "missing": [
      {
        "field": "type_species",
        "label": "Type species",
        "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": "parent_name",
        "label": "Parent group",
        "source": "PBDB"
      },
      {
        "field": "family",
        "label": "Family",
        "source": "PBDB"
      },
      {
        "field": "order",
        "label": "Order",
        "source": "NHM"
      },
      {
        "field": "headline",
        "label": "Age (headline)",
        "source": "PBDB"
      },
      {
        "field": "common_names",
        "label": "Common names",
        "source": "Wikidata"
      },
      {
        "field": "diet",
        "label": "Diet",
        "source": "PBDB"
      }
    ],
    "disputed": [],
    "withheld": [
      {
        "records": "occurrences",
        "status": "tentative",
        "count": 7,
        "reason": "PBDB fossil records identified only tentatively (for example 'cf.', '?', or the genus name in quotation marks, PBDB's mark for a loose use)"
      }
    ]
  },
  "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": [
    {
      "name": "Morrison",
      "same_as": "Morrison Formation",
      "status": "automatic",
      "ruling": null
    }
  ],
  "credits": {
    "genus": "Apatosaurus",
    "scope": "confirmed matches only",
    "data_sources": [
      {
        "values": 5355,
        "retrieved": [
          "2026-10-04",
          "2026-10-05",
          "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": 153,
        "retrieved": [
          "2026-10-04",
          "2026-10-05"
        ],
        "source": "nhm",
        "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": "Natural History Museum (London) Data Portal, Collection specimens dataset, https://doi.org/10.5519/0002965. Image licenses vary per record.",
        "source_name": "Natural History Museum Data Portal",
        "homepage": "https://data.nhm.ac.uk"
      },
      {
        "values": 30,
        "retrieved": [
          "2026-10-05"
        ],
        "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": 657,
        "title": "File:Apatosaurus ajax skull.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/3/30/Apatosaurus_ajax_skull.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:Apatosaurus_ajax_skull.jpg",
        "source": "commons",
        "rights_holder": "James St. John",
        "catalog_number": null,
        "license_id": "CC-BY-2.0",
        "license_name": "Creative Commons Attribution 2.0",
        "license_url": "https://creativecommons.org/licenses/by/2.0/",
        "requires_attribution": true,
        "share_alike": false,
        "attribution": "James St. John (Apatosaurus ajax sauropod dinosaur (Morrison Formation, Upper Jurassic; Emery County, Utah, USA) 1), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Apatosaurus_ajax_skull.jpg)"
      },
      {
        "media_id": 658,
        "title": "File:Apatosaurus louisae by durbed.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/4/44/Apatosaurus_louisae_by_durbed.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:Apatosaurus_louisae_by_durbed.jpg",
        "source": "commons",
        "rights_holder": "Durbed",
        "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": "Durbed (http://durbed.deviantart.com/art/Thunder-lizard-338805355), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Apatosaurus_louisae_by_durbed.jpg)"
      },
      {
        "media_id": 656,
        "title": "File:Apatosaurus.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/a/a6/Apatosaurus.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:Apatosaurus.jpg",
        "source": "commons",
        "rights_holder": "Elika & Shannon",
        "catalog_number": null,
        "license_id": "CC-BY-2.0",
        "license_name": "Creative Commons Attribution 2.0",
        "license_url": "https://creativecommons.org/licenses/by/2.0/",
        "requires_attribution": true,
        "share_alike": false,
        "attribution": "Elika & Shannon (New York Trip (88)), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Apatosaurus.jpg)"
      },
      {
        "media_id": 659,
        "title": "File:Louisae.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/3/3a/Louisae.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:Louisae.jpg",
        "source": "commons",
        "rights_holder": "Tadek Kurpaski from London, Poland",
        "catalog_number": null,
        "license_id": "CC-BY-2.0",
        "license_name": "Creative Commons Attribution 2.0",
        "license_url": "https://creativecommons.org/licenses/by/2.0/",
        "requires_attribution": true,
        "share_alike": false,
        "attribution": "Tadek Kurpaski from London, Poland (sauropod Uploaded by FunkMonk), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Louisae.jpg)"
      },
      {
        "media_id": 654,
        "title": "NHM-UK_P_DF118_03_22_0119",
        "category": "Register",
        "url": "https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 3211",
        "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,
        "share_alike": false,
        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0)"
      },
      {
        "media_id": 652,
        "title": "NHM-UK_P_DF118_03_22_0119",
        "category": "Register",
        "url": "https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 3212",
        "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,
        "share_alike": false,
        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0)"
      },
      {
        "media_id": 653,
        "title": "NHM-UK_P_DF118_03_22_0119",
        "category": "Register",
        "url": "https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 3213",
        "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,
        "share_alike": false,
        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0)"
      },
      {
        "media_id": 655,
        "title": "NHM-UK_P_DF118_03_22_0119",
        "category": "Register",
        "url": "https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 3214",
        "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,
        "share_alike": false,
        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0)"
      },
      {
        "media_id": 651,
        "title": "NHM-UK_P_DF118_03_22_0119",
        "category": "Register",
        "url": "https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 3215",
        "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,
        "share_alike": false,
        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0)"
      }
    ],
    "derived_ages": {
      "specimens": 6,
      "ics_version": "v2024/12"
    },
    "references": 202
  },
  "credits_markdown": "## Apatosaurus: 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, 11 October 2026.\n- **Natural History Museum Data Portal** (https://data.nhm.ac.uk): [Creative Commons Zero 1.0 (public domain dedication)](https://creativecommons.org/publicdomain/zero/1.0/). Natural History Museum (London) Data Portal, Collection specimens dataset, https://doi.org/10.5519/0002965. Image licenses vary per record. Retrieved 4 October 2026, 5 October 2026. _Credited as a courtesy: this licence doesn't require attribution._\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 5 October 2026. _Credited as a courtesy: this licence doesn't require attribution._\n\nAges for 6 specimen(s) were derived from their stage names using the ICS International Chronostratigraphic Chart v2024/12 (International Commission on Stratigraphy), via the Paleobiology Database (CC BY 4.0).\n\n### Images (9)\n- “File:Apatosaurus ajax skull.jpg” (Taxon image): James St. John (Apatosaurus ajax sauropod dinosaur (Morrison Formation, Upper Jurassic; Emery County, Utah, USA) 1), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Apatosaurus_ajax_skull.jpg). [Creative Commons Attribution 2.0](https://creativecommons.org/licenses/by/2.0/).\n- “File:Apatosaurus louisae by durbed.jpg” (Taxon image): Durbed (http://durbed.deviantart.com/art/Thunder-lizard-338805355), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Apatosaurus_louisae_by_durbed.jpg). [Creative Commons Attribution-ShareAlike 3.0](https://creativecommons.org/licenses/by-sa/3.0/). Shown unmodified (share-alike licence).\n- “File:Apatosaurus.jpg” (Taxon image): Elika & Shannon (New York Trip (88)), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Apatosaurus.jpg). [Creative Commons Attribution 2.0](https://creativecommons.org/licenses/by/2.0/).\n- “File:Louisae.jpg” (Taxon image): Tadek Kurpaski from London, Poland (sauropod Uploaded by FunkMonk), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Louisae.jpg). [Creative Commons Attribution 2.0](https://creativecommons.org/licenses/by/2.0/).\n- “NHM-UK_P_DF118_03_22_0119” (specimen PV R 3211): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_22_0119” (specimen PV R 3212): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_22_0119” (specimen PV R 3213): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_22_0119” (specimen PV R 3214): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_22_0119” (specimen PV R 3215): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/425aab7b-10cd-4d17-ba2e-d383d84c42b0). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n\n### Scientific references\n\n202 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",
  "identifiers": [
    {
      "scheme": "pbdb",
      "name": "Paleobiology Database",
      "id": "38665",
      "url": "https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=38665"
    },
    {
      "scheme": "enwiki",
      "name": "Wikipedia (English)",
      "id": "Apatosaurus",
      "url": "https://en.wikipedia.org/wiki/Apatosaurus"
    },
    {
      "scheme": "gbif",
      "name": "GBIF",
      "id": "4822558",
      "url": "https://www.gbif.org/species/4822558"
    },
    {
      "scheme": "wikidata",
      "name": "Wikidata",
      "id": "Q14326",
      "url": "https://www.wikidata.org/wiki/Q14326"
    }
  ],
  "other_names": {
    "species": [
      "Apatosaurus ajax",
      "Apatosaurus laticollis",
      "Apatosaurus louisae"
    ],
    "synonyms": [
      {
        "name": "Titanosaurus",
        "status": "subjective synonym of",
        "authority": "Marsh 1877"
      }
    ]
  },
  "original_description": {
    "citation": "O. C. Marsh (1877). Notice of new dinosaurian reptiles from the Jurassic formation. American Journal of Science and Arts 14: 514–516.",
    "authors": "O. C. Marsh",
    "year": 1877,
    "title": "Notice of new dinosaurian reptiles from the Jurassic formation",
    "publication": "American Journal of Science and Arts",
    "volume": "14",
    "issue": null,
    "pages": "514–516",
    "doi": "10.2475/ajs.s3-14.84.514",
    "url": "https://doi.org/10.2475/ajs.s3-14.84.514",
    "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": "high",
      "reasons": [
        "PBDB gives this publication for the name; its author and year match the naming authority (Marsh 1877), on which PBDB and Wikidata agree."
      ]
    },
    "source": "pbdb",
    "source_name": "Paleobiology Database",
    "license_id": "CC-BY-4.0",
    "pbdb_reference_no": "7811"
  },
  "summary": "Omnisaura summary: Apatosaurus, Marsh 1877\n\n- Named by: Marsh 1877 (high confidence: PBDB and Wikidata agree).\n- Family: Diplodocidae (medium confidence: only PBDB gives this; nothing contradicts it).\n- Order: Saurischia (medium confidence: only NHM gives this; nothing contradicts it).\n- Parent group: Apatosaurinae (medium confidence: only PBDB gives this; nothing contradicts it).\n- Age, as published by the Paleobiology Database: 157.9–143.1 million years ago (medium confidence: only PBDB gives a range this precise; NHM's records give only a broader interval, which contains it).\n- Age, Omnisaura's own calculation (not a published figure): 157.9–143.1 million years ago (medium confidence: Omnisaura's calculation from 60 confirmed PBDB records).\n- Fossils found in: United States (high: NHM and PBDB both record it).\n- Rock formations: Morrison Formation (high: NHM and PBDB both record it).\n- Original description: O. C. Marsh (1877). Notice of new dinosaurian reptiles from the Jurassic formation. American Journal of Science and Arts 14: 514–516. https://doi.org/10.2475/ajs.s3-14.84.514 (high confidence: PBDB gives this publication for the name; its author and year match the naming authority (Marsh 1877), on which PBDB and Wikidata agree).\n- Diet, inferred by PBDB for the group: herbivore (medium confidence: only PBDB gives this, and it infers it for the whole of Sauropoda, the group this genus belongs to, not from this genus's own fossils).\n- Way of life, inferred by PBDB for the group: ground dwelling, gregarious (low confidence: PBDB infers this way of life for the whole of Sauropoda; behaviour is rarely known for one genus).\n- Common names: 迷惑龍 (medium confidence: only Wikidata gives this; nothing contradicts it).\n\nNot known or disputed:\n- Type species: no source Omnisaura uses gives this.\n- Named after: no source Omnisaura uses gives this.\n- 7 record(s) left out: pBDB fossil records identified only tentatively (for example 'cf.', '?', or the genus name in quotation marks, PBDB's mark for a loose use).\n\nNot covered by Omnisaura: size, weight, appearance, or behaviour beyond the way of life PBDB infers for the group. Do not fill these in from general knowledge as if they came from Omnisaura.\n\nCredits (must be shown with any of this): Natural History Museum Data Portal (CC0-1.0); Paleobiology Database (CC-BY-4.0); Wikidata (CC0-1.0)."
}