{
  "schema": "omnisaura.snapshot/v2",
  "uid": "omnisaura:profile:lesothosaurus",
  "genus": "Lesothosaurus",
  "generated_at": "2026-10-12T10:16:43Z",
  "raw_run": "2026-10-12",
  "profile": {
    "name": {
      "value": "Lesothosaurus",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "authority": {
      "value": "Galton 1978",
      "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": "Ornithischia",
      "rule": "Gap filled from NHM",
      "rule_id": "merge:gap_fill_nhm",
      "synthesis": false,
      "sources": [
        {
          "source": "nhm",
          "license": "CC0-1.0"
        }
      ]
    },
    "family": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "parent_name": {
      "value": "Thyreophora",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "headline": {
      "value": [
        201.4,
        192.9,
        "Hettangian",
        "Sinemurian"
      ],
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "evidence": {
      "value": [
        201.4,
        192.9
      ],
      "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": [
        "LS",
        "ZA"
      ],
      "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": [
        "Elliot 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"
        }
      ]
    },
    "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"
    },
    "parent_name": {
      "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": "high",
      "basis": "corroborated",
      "reasons": [
        "PBDB and NHM agree."
      ]
    },
    "evidence": {
      "level": "medium",
      "basis": "synthesis",
      "reasons": [
        "Omnisaura's calculation from 8 confirmed PBDB records."
      ]
    },
    "countries": {
      "level": "mixed",
      "basis": "items",
      "reasons": [
        "Entries differ; see each entry."
      ],
      "items": [
        {
          "value": "LS",
          "level": "high",
          "basis": "corroborated",
          "reasons": [
            "NHM and PBDB both record it."
          ]
        },
        {
          "value": "ZA",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (2 records)."
          ],
          "source": "PBDB"
        }
      ]
    },
    "formations": {
      "level": "high",
      "basis": "items",
      "reasons": [
        "See each entry."
      ],
      "items": [
        {
          "value": "Elliot 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": "family",
        "label": "Family",
        "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": "parent_name",
        "label": "Parent group",
        "source": "PBDB"
      },
      {
        "field": "order",
        "label": "Order",
        "source": "NHM"
      }
    ],
    "disputed": [],
    "withheld": [
      {
        "records": "occurrences",
        "status": "tentative",
        "count": 1,
        "reason": "PBDB fossil records identified only tentatively (for example 'cf.' or '?')"
      }
    ]
  },
  "assessment": {
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      "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"
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    {
      "name": "Elliot",
      "same_as": "Elliot Formation",
      "status": "automatic",
      "ruling": null
    }
  ],
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    "scope": "confirmed matches only",
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        "source_name": "Paleobiology Database",
        "homepage": "https://paleobiodb.org"
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        "share_alike": false,
        "attribution": "The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/a588d7a3-3f0c-4c1a-856c-627a48505495)"
      },
      {
        "media_id": 2779,
        "title": "NHMUK PV RUB 17 Lesothosaurus skull with scalebar",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/e42fee90-275c-488d-a9b5-3003aba66f41",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV RUB 17",
        "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/e42fee90-275c-488d-a9b5-3003aba66f41)"
      },
      {
        "media_id": 2781,
        "title": "NHMUK PV RUB 23 Lesothosaurus diagnosticus skull left lateral",
        "category": "Specimen",
        "url": "https://data.nhm.ac.uk/media/c9b88d5e-902d-473b-bb1d-1ba768a6d431",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV RUB 23",
        "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/c9b88d5e-902d-473b-bb1d-1ba768a6d431)"
      },
      {
        "media_id": 2768,
        "title": "R8501-Skull-R-Lat-dentition-1-PV-R8501",
        "category": null,
        "url": "https://data.nhm.ac.uk/media/ae6c5a86-7f02-4d9b-872e-98edf8a90047",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8501",
        "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/ae6c5a86-7f02-4d9b-872e-98edf8a90047)"
      },
      {
        "media_id": 2766,
        "title": "R8501-Skull-R-Lat-dentition-2-PV-R8501",
        "category": null,
        "url": "https://data.nhm.ac.uk/media/3a06a4f7-82ef-46b5-b46a-2c2baf038256",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8501",
        "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/3a06a4f7-82ef-46b5-b46a-2c2baf038256)"
      },
      {
        "media_id": 2765,
        "title": "R8501-Skull-R-lat-PV-R8501",
        "category": null,
        "url": "https://data.nhm.ac.uk/media/9af6eae5-0cc1-4949-bc31-193a88fb8452",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8501",
        "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/9af6eae5-0cc1-4949-bc31-193a88fb8452)"
      },
      {
        "media_id": 2767,
        "title": "R8501-Skull-close-up-R-Lat-PV-R8501",
        "category": null,
        "url": "https://data.nhm.ac.uk/media/c25be6f7-d1da-4bdb-adc1-c8087e566273",
        "page_url": null,
        "source": "nhm",
        "rights_holder": "The Trustees of the Natural History Museum, London",
        "catalog_number": "PV R 8501",
        "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/c25be6f7-d1da-4bdb-adc1-c8087e566273)"
      }
    ],
    "derived_ages": {
      "specimens": 12,
      "ics_version": "v2024/12"
    },
    "references": 71
  },
  "credits_markdown": "## Lesothosaurus: 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- **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 10 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 10 October 2026. _Credited as a courtesy: this licence doesn't require attribution._\n\nAges for 12 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 (23)\n- “File:Lesothosaurus ER670.JPG” (Taxon image): Conty (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Lesothosaurus_ER670.JPG). [Creative Commons Attribution 3.0](https://creativecommons.org/licenses/by/3.0/).\n- “File:Lesothosaurus diagnosticus.png” (Taxon image): Jack Wood, via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Lesothosaurus_diagnosticus.png). [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/). Shown unmodified (share-alike licence).\n- “File:Lesothosaurus.JPG” (Taxon image): Esv (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Lesothosaurus.JPG). [Creative Commons Attribution-ShareAlike 3.0](https://creativecommons.org/licenses/by-sa/3.0/). Shown unmodified (share-alike licence).\n- “Kermack's RUB 17 field notes” (specimen PV RUB 17): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/df8c8610-a638-42bd-a352-1f47d99873fe). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “Kermack's RUB 23 locality” (specimen PV RUB 23): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/313b758b-f359-4c19-a35d-61f196363985). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0539” (specimen PV R 11004): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/c14d934b-938b-492c-ae4a-2c1286cdbc07). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0667” (specimen PV R 11956): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/350235df-b783-4adb-a9aa-60ac1ee56f87). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHM-UK_P_DF118_03_24_0207” (specimen PV R 8501): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/192d92b3-ac04-4fd1-9e97-0933d65de95c). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “Evans Jaw Lesotho site A1” (specimen PV R 39020): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/414fd5c9-d55c-4dc1-9e1a-8baea315a42e). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “Lesothosaurus Evans 2024-938 PV return” (specimen PV R 39020): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/a9a760c6-74d1-412a-9b01-e0d97c1621a4). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 - remnants in resin” (specimen PV R 39020): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/df859adf-b712-41fe-95bd-0db64246426f). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 $1” (specimen PV R 39020 $1): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/2a346c6f-6c53-45ab-a540-5d609598f868). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 $2” (specimen PV R 39020 $2): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/412d2536-b5e0-40c6-9feb-548fdf446df6). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 $3” (specimen PV R 39020 $3): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/691ee2dd-5673-4405-bb4a-af3171a7c412). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 $4” (specimen PV R 39020 $4): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/6ef4aaf8-30d2-458d-8850-3b591d24f8f2). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 $5” (specimen PV R 39020 $5): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/f3248b80-4a3d-4d0d-b94e-7c53aefebeca). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV R 39020 $6” (specimen PV R 39020 $6): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/a588d7a3-3f0c-4c1a-856c-627a48505495). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV RUB 17 Lesothosaurus skull with scalebar” (specimen PV RUB 17): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/e42fee90-275c-488d-a9b5-3003aba66f41). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “NHMUK PV RUB 23 Lesothosaurus diagnosticus skull left lateral” (specimen PV RUB 23): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/c9b88d5e-902d-473b-bb1d-1ba768a6d431). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “R8501-Skull-R-Lat-dentition-1-PV-R8501” (specimen PV R 8501): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/ae6c5a86-7f02-4d9b-872e-98edf8a90047). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “R8501-Skull-R-Lat-dentition-2-PV-R8501” (specimen PV R 8501): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/3a06a4f7-82ef-46b5-b46a-2c2baf038256). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “R8501-Skull-R-lat-PV-R8501” (specimen PV R 8501): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/9af6eae5-0cc1-4949-bc31-193a88fb8452). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n- “R8501-Skull-close-up-R-Lat-PV-R8501” (specimen PV R 8501): The Trustees of the Natural History Museum, London; via NHM Data Portal (https://data.nhm.ac.uk/media/c25be6f7-d1da-4bdb-adc1-c8087e566273). [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/).\n\n### Scientific references\n\n71 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": "P. M. Galton (1978). Fabrosauridae, the basal family of ornithischian dinosaurs (Reptilia: Ornithischia). Paläontologische Zeitschrift 52(1/2): 138–159.",
    "authors": "P. M. Galton",
    "year": 1978,
    "title": "Fabrosauridae, the basal family of ornithischian dinosaurs (Reptilia: Ornithischia)",
    "publication": "Paläontologische Zeitschrift",
    "volume": "52",
    "issue": "1/2",
    "pages": "138–159",
    "doi": "10.1007/bf03006735",
    "url": "https://doi.org/10.1007/bf03006735",
    "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 (Galton 1978)."
      ]
    },
    "source": "pbdb",
    "source_name": "Paleobiology Database",
    "license_id": "CC-BY-4.0",
    "pbdb_reference_no": "12660"
  },
  "summary": "Omnisaura summary: Lesothosaurus, Galton 1978\n\n- Named by: Galton 1978 (medium confidence: only PBDB gives this; nothing contradicts it).\n- Order: Ornithischia (medium confidence: only NHM gives this; nothing contradicts it).\n- Parent group: Thyreophora (medium confidence: only PBDB gives this; nothing contradicts it).\n- Age, as published by the Paleobiology Database: Hettangian to Sinemurian, 201.4–192.9 million years ago (high confidence: PBDB and NHM agree).\n- Age, Omnisaura's own calculation (not a published figure): 201.4–192.9 million years ago (medium confidence: Omnisaura's calculation from 8 confirmed PBDB records).\n- Fossils found in: Lesotho (high: NHM and PBDB both record it); South Africa (medium: only PBDB records it (2 records)).\n- Rock formations: Elliot Formation (high: NHM and PBDB both record it).\n- Original description: P. M. Galton (1978). Fabrosauridae, the basal family of ornithischian dinosaurs (Reptilia: Ornithischia). Paläontologische Zeitschrift 52(1/2): 138–159. https://doi.org/10.1007/bf03006735 (medium confidence: only PBDB gives this; its author and year match the naming authority (Galton 1978)).\n\nNot known or disputed:\n- Type species: no source Omnisaura uses gives this.\n- Family: 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- 1 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)."
}