{
  "schema": "omnisaura.snapshot/v2",
  "uid": "omnisaura:profile:tyrannosaurus",
  "genus": "Tyrannosaurus",
  "generated_at": "2026-10-12T10:16:43Z",
  "raw_run": "2026-10-12",
  "profile": {
    "name": {
      "value": "Tyrannosaurus",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "authority": {
      "value": "Osborn 1905",
      "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": "Tyrannosauridae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        },
        {
          "source": "nhm",
          "license": "CC0-1.0"
        }
      ]
    },
    "parent_name": {
      "value": "Tyrannosaurini",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "headline": {
      "value": [
        83.6,
        66.0,
        "Campanian",
        "Maastrichtian"
      ],
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "evidence": {
      "value": [
        83.6,
        66.0
      ],
      "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": [
        "CA",
        "CN",
        "MX",
        "RU",
        "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": [
        "Denver",
        "Dinosaur Park",
        "Ferris",
        "Fox Hills",
        "Frenchman",
        "Fruitland/Kirtland",
        "Hall Lake",
        "Hell Creek Formation",
        "Kirtland",
        "Lance Formation",
        "Lomas Coloradas",
        "Scollard",
        "Subashi",
        "Willow Creek"
      ],
      "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"
        }
      ]
    },
    "common_names": {
      "value": [
        "es:Tiranosaurio",
        "fr:Tyrannosaure",
        "ja:ティラノサウルス属",
        "zh:暴龍",
        "zh:暴龍屬"
      ],
      "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": "high",
      "basis": "corroborated",
      "reasons": [
        "PBDB and NHM agree."
      ]
    },
    "order": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only NHM gives this; nothing contradicts it."
      ],
      "source": "NHM"
    },
    "headline": {
      "level": "high",
      "basis": "corroborated",
      "reasons": [
        "PBDB and NHM agree."
      ]
    },
    "evidence": {
      "level": "medium",
      "basis": "synthesis",
      "reasons": [
        "Omnisaura's calculation from 75 confirmed PBDB records."
      ]
    },
    "common_names": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only Wikidata gives this; nothing contradicts it."
      ],
      "source": "Wikidata"
    },
    "countries": {
      "level": "mixed",
      "basis": "items",
      "reasons": [
        "Entries differ; see each entry."
      ],
      "items": [
        {
          "value": "CA",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (5 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "CN",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "MX",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "RU",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "US",
          "level": "high",
          "basis": "corroborated",
          "reasons": [
            "NHM and PBDB both record it."
          ]
        }
      ]
    },
    "formations": {
      "level": "mixed",
      "basis": "items",
      "reasons": [
        "Entries differ; see each entry."
      ],
      "items": [
        {
          "value": "Denver",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (5 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Dinosaur Park",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Ferris",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (4 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Fox Hills",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Frenchman",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (2 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Fruitland/Kirtland",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Hall Lake",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Hell Creek Formation",
          "level": "high",
          "basis": "corroborated",
          "reasons": [
            "NHM and PBDB both record it."
          ]
        },
        {
          "value": "Kirtland",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Lance Formation",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (8 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Lomas Coloradas",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Scollard",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Subashi",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Willow Creek",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        }
      ]
    }
  },
  "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": "order",
        "label": "Order",
        "source": "NHM"
      },
      {
        "field": "common_names",
        "label": "Common names",
        "source": "Wikidata"
      }
    ],
    "disputed": [],
    "withheld": [
      {
        "records": "occurrences",
        "status": "tentative",
        "count": 12,
        "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": [
    {
      "name": "Hell Creek",
      "same_as": "Hell Creek Formation",
      "status": "automatic",
      "ruling": null
    },
    {
      "name": "Lance",
      "same_as": "Lance Formation",
      "status": "automatic",
      "ruling": null
    }
  ],
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    "scope": "confirmed matches only",
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        "homepage": "https://data.nhm.ac.uk"
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        "title": "NHMUK PV R 16372 Tyrannosaurus skull on exhibit in From The Beginning with ino flash",
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      {
        "media_id": 13,
        "title": "NHMUK_PV_R_3912_Trex_gallery_label_2024",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/96d70e09-01e7-4f89-802f-4133e18e4d99",
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      },
      {
        "media_id": 12,
        "title": "NHMUK_PV_R_3912_Trex_in_gallery",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/36b28628-70b0-4d3c-9e32-8488ac7723c3",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 3912",
        "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/36b28628-70b0-4d3c-9e32-8488ac7723c3)"
      },
      {
        "media_id": 21,
        "title": "T rex dentary",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/a3555b14-c4aa-4800-8b5b-53d3fb2b13d1",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8020",
        "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,
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        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/a3555b14-c4aa-4800-8b5b-53d3fb2b13d1)"
      },
      {
        "media_id": 4,
        "title": "NHMUK PV R 8031 Trex abdominal rib",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/cfaedc38-f876-4bc0-b0dd-802ad8ae6d0b",
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        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8031",
        "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,
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        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/cfaedc38-f876-4bc0-b0dd-802ad8ae6d0b)"
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      {
        "media_id": 6,
        "title": "NHMUK PV R 8043 Trex ribs",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/8eae6295-a2fe-43f5-963a-3db3ddf317d0",
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        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8043",
        "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,
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        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/8eae6295-a2fe-43f5-963a-3db3ddf317d0)"
      },
      {
        "media_id": 2,
        "title": "NHMUK PV R 8045 Trex ribs",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/325ffe0b-8eed-4610-bf55-ab47605bf212",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8045",
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        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/325ffe0b-8eed-4610-bf55-ab47605bf212)"
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        "media_id": 10,
        "title": "NHMUK PV R 8049 Trex chevron caudal view",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/53a1343b-ba02-4464-8e7a-d8f72f30f6d6",
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        "source": "nhm",
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        "requires_attribution": true,
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        "media_id": 8,
        "title": "NHMUK PV R 8049 Trex chevron left lateral view",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/c4f2bcaf-7c89-4246-9713-77b4c2b6e5eb",
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        "source": "nhm",
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        "catalog_number": "PV R 8049",
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        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/c4f2bcaf-7c89-4246-9713-77b4c2b6e5eb)"
      },
      {
        "media_id": 9,
        "title": "NHMUK PV R 8049 Trex chevron rostral view",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/f7884998-4a1d-4b9e-9141-2dbe296fdbd7",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8049",
        "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/f7884998-4a1d-4b9e-9141-2dbe296fdbd7)"
      }
    ],
    "derived_ages": {
      "specimens": 57,
      "ics_version": "v2024/12"
    },
    "references": 292
  },
  "credits_markdown": "## Tyrannosaurus: 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, 10 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. _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 4 October 2026. _Credited as a courtesy: this licence doesn't require attribution._\n\nAges for 57 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 (78)\n- “File:Baby T-rex 0496.JPG” (Taxon image): Conty (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Baby_T-rex_0496.JPG). [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/). Shown unmodified (share-alike licence).\n- “File:Embrião e ovo de Tiranossauro rex MN 01.jpg” (Taxon image): Dornicke (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Embri%C3%A3o_e_ovo_de_Tiranossauro_rex_MN_01.jpg). [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/). Shown unmodified (share-alike licence).\n- “File:Tyrannosaurus Rex Holotype.jpg” (Taxon image): ScottRobertAnselmo (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Tyrannosaurus_Rex_Holotype.jpg). [Creative Commons Attribution-ShareAlike 3.0](https://creativecommons.org/licenses/by-sa/3.0/). Shown unmodified (share-alike licence).\n- “File:Tyrannosaurus mcraeensis.png” (Taxon image): Ddinodan (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Tyrannosaurus_mcraeensis.png). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “File:Tyrannosaurus rex Reconstruction by Nobu Tamura.jpg” (Taxon image): Nobu Tamura (I commissioned this from Nobu Tamura and he shared the file to me upon completion), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Tyrannosaurus_rex_Reconstruction_by_Nobu_Tamura.jpg). [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/). Shown unmodified (share-alike licence).\n- “T. rex teeth” (specimen PV R 8020): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/44dee5a7-d890-4092-94e6-7ff9ee4ac5dc). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_22_0257” (specimen PV R 3912): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e74d934b-3c9a-4813-9260-3711c344c848). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 7993): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 7994): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 7995): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 7997): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 7998): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 7999): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 8000): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 8002): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 8003): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 8004): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0139” (specimen PV R 8005): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e8db9100-6446-447b-b5db-a9c6cb461ea7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8006): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8007): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8008): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8009): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8010): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8011): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8012): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8013): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8014): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8015): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8016): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8017): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8018): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8019): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0141” (specimen PV R 8020): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/b1a8b980-b289-4b11-803f-1775d5eb8ab8). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8021): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8022): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8023): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8024): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8025): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8026): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8027): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8028): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8029): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8030): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8031): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8032): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8033): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8034): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0143” (specimen PV R 8035): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/03d91680-2f6a-422d-8d33-d67a3a570e07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8036): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8037): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8038): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8039): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8040): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8041): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8042): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8043): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8044): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8045): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8046): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8047): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8048): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8049): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0145” (specimen PV R 8050): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/07dcfb60-baf8-4b15-a736-cd7f572759c9). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0147” (specimen PV R 8051): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/34ba6eda-7bad-48bf-8034-4358c0e6222f). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 16372 - display label” (specimen PV R 16372): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/8061ae71-85c8-47b5-a918-ae76cb6b5680). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 16372 - on display” (specimen PV R 16372): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e1207c37-49a7-4ef4-ba0c-77ccee33e503). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 16372 Tyrannosaurus skull FromTheBeginning label” (specimen PV R 16372): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/4c8d34ab-9589-458a-a58c-e45423747ec1). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 16372 Tyrannosaurus skull on exhibit in From The Beginning with flash” (specimen PV R 16372): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/6f0b8352-2514-4569-a543-c8c626350274). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 16372 Tyrannosaurus skull on exhibit in From The Beginning with ino flash” (specimen PV R 16372): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/27fb0e02-f8ba-43dd-b9eb-130a90ccd4dc). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK_PV_R_3912_Trex_gallery_label_2024” (specimen PV R 3912): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/96d70e09-01e7-4f89-802f-4133e18e4d99). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK_PV_R_3912_Trex_in_gallery” (specimen PV R 3912): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/36b28628-70b0-4d3c-9e32-8488ac7723c3). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “T rex dentary” (specimen PV R 8020): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/a3555b14-c4aa-4800-8b5b-53d3fb2b13d1). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 8031 Trex abdominal rib” (specimen PV R 8031): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/cfaedc38-f876-4bc0-b0dd-802ad8ae6d0b). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 8043 Trex ribs” (specimen PV R 8043): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/8eae6295-a2fe-43f5-963a-3db3ddf317d0). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 8045 Trex ribs” (specimen PV R 8045): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/325ffe0b-8eed-4610-bf55-ab47605bf212). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 8049 Trex chevron caudal view” (specimen PV R 8049): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/53a1343b-ba02-4464-8e7a-d8f72f30f6d6). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 8049 Trex chevron left lateral view” (specimen PV R 8049): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/c4f2bcaf-7c89-4246-9713-77b4c2b6e5eb). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 8049 Trex chevron rostral view” (specimen PV R 8049): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/f7884998-4a1d-4b9e-9141-2dbe296fdbd7). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n\n### Scientific references\n\n292 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": "H. F. Osborn (1905). Tyrannosaurus and other Cretaceous carnivorous dinosaurs. Bulletin of the American Museum of Natural History 21(14): 259–265.",
    "authors": "H. F. Osborn",
    "year": 1905,
    "title": "Tyrannosaurus and other Cretaceous carnivorous dinosaurs",
    "publication": "Bulletin of the American Museum of Natural History",
    "volume": "21",
    "issue": "14",
    "pages": "259–265",
    "doi": null,
    "url": null,
    "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 (Osborn 1905), on which PBDB and Wikidata agree."
      ]
    },
    "source": "pbdb",
    "source_name": "Paleobiology Database",
    "license_id": "CC-BY-4.0",
    "pbdb_reference_no": "9259"
  },
  "summary": "Omnisaura summary: Tyrannosaurus, Osborn 1905\n\n- Named by: Osborn 1905 (high confidence: PBDB and Wikidata agree).\n- Family: Tyrannosauridae (high confidence: PBDB and NHM agree).\n- Order: Saurischia (medium confidence: only NHM gives this; nothing contradicts it).\n- Parent group: Tyrannosaurini (medium confidence: only PBDB gives this; nothing contradicts it).\n- Age, as published by the Paleobiology Database: Campanian to Maastrichtian, 83.6–66 million years ago (high confidence: PBDB and NHM agree).\n- Age, Omnisaura's own calculation (not a published figure): 83.6–66 million years ago (medium confidence: Omnisaura's calculation from 75 confirmed PBDB records).\n- Fossils found in: United States (high: NHM and PBDB both record it); Canada (medium: only PBDB records it (5 records)); China (low: only one PBDB record); Mexico (low: only one PBDB record); Russia (low: only one PBDB record).\n- Rock formations: Hell Creek Formation (high: NHM and PBDB both record it); Denver (medium: only PBDB records it (5 records)); Ferris (medium: only PBDB records it (4 records)); Frenchman (medium: only PBDB records it (2 records)); Lance Formation (medium: only PBDB records it (8 records)); Dinosaur Park (low: only one PBDB record); Fox Hills (low: only one PBDB record); Fruitland/Kirtland (low: only one PBDB record); Hall Lake (low: only one PBDB record); Kirtland (low: only one PBDB record); Lomas Coloradas (low: only one PBDB record); Scollard (low: only one PBDB record); Subashi (low: only one PBDB record); Willow Creek (low: only one PBDB record).\n- Original description: H. F. Osborn (1905). Tyrannosaurus and other Cretaceous carnivorous dinosaurs. Bulletin of the American Museum of Natural History 21(14): 259–265. (high confidence: PBDB gives this publication for the name; its author and year match the naming authority (Osborn 1905), on which PBDB and Wikidata agree).\n- Common names: Tiranosaurio, Tyrannosaure, ティラノサウルス属, 暴龍, 暴龍屬 (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- 12 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): Natural History Museum Data Portal (CC0-1.0); Paleobiology Database (CC-BY-4.0); Wikidata (CC0-1.0)."
}