{
  "schema": "omnisaura.snapshot/v3",
  "uid": "omnisaura:profile:macroolithus",
  "genus": "Macroolithus",
  "data_as_of": "2026-10-11",
  "raw_run": "2026-10-11_2",
  "profile": {
    "name": {
      "value": "Macroolithus",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "authority": {
      "value": "Zhao 1975",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "type_species": {
      "value": "Macroolithus rugustus",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "order": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "family": {
      "value": "Elongatoolithidae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "parent_name": {
      "value": "Elongatoolithidae",
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "headline": {
      "value": [
        132.6,
        66.0,
        "Hauterivian",
        "Maastrichtian"
      ],
      "rule": "PBDB leads",
      "rule_id": "merge:lead_pbdb",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "evidence": {
      "value": [
        100.5,
        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": [
        "CN",
        "ES",
        "KZ",
        "MN"
      ],
      "rule": "Union of all sources (ISO 3166)",
      "rule_id": "merge:union_iso3166",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "formations": {
      "value": [
        "Baruungoyot",
        "Djadokhta",
        "Dongyuan",
        "El Castellar",
        "Hekou",
        "Nanchao",
        "Nemegt",
        "Pingling",
        "Tayzhuzgen",
        "Yuanpu",
        "Zhenshui",
        "Zhutian"
      ],
      "rule": "Canonical names, automatic and editor-approved matches applied",
      "rule_id": "merge:canonical_formations",
      "synthesis": false,
      "sources": [
        {
          "source": "pbdb",
          "license": "CC-BY-4.0"
        }
      ]
    },
    "diet": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "life_habit": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "common_names": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    },
    "named_after": {
      "value": null,
      "rule": null,
      "rule_id": null,
      "synthesis": false,
      "sources": []
    }
  },
  "confidence": {
    "name": {
      "level": "high",
      "basis": "corroborated",
      "reasons": [
        "PBDB and Wikidata identify the same genus."
      ]
    },
    "authority": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "type_species": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "parent_name": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "family": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "headline": {
      "level": "medium",
      "basis": "single_source",
      "reasons": [
        "Only PBDB gives this; nothing contradicts it."
      ],
      "source": "PBDB"
    },
    "evidence": {
      "level": "medium",
      "basis": "synthesis",
      "reasons": [
        "Omnisaura's calculation from 49 confirmed PBDB records.",
        "1 record(s) identified only to genus, dated well outside the species-level records, were set aside as doubtful."
      ]
    },
    "countries": {
      "level": "mixed",
      "basis": "items",
      "reasons": [
        "Entries differ; see each entry."
      ],
      "items": [
        {
          "value": "CN",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (42 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "ES",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "KZ",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "MN",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (6 records)."
          ],
          "source": "PBDB"
        }
      ]
    },
    "formations": {
      "level": "mixed",
      "basis": "items",
      "reasons": [
        "Entries differ; see each entry."
      ],
      "items": [
        {
          "value": "Baruungoyot",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Djadokhta",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Dongyuan",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "El Castellar",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Hekou",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Nanchao",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Nemegt",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (4 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Pingling",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (14 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Tayzhuzgen",
          "level": "low",
          "basis": "thin",
          "reasons": [
            "Only one PBDB record."
          ]
        },
        {
          "value": "Yuanpu",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (6 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Zhenshui",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (7 records)."
          ],
          "source": "PBDB"
        },
        {
          "value": "Zhutian",
          "level": "medium",
          "basis": "single_source",
          "reasons": [
            "Only PBDB records it (9 records)."
          ],
          "source": "PBDB"
        }
      ]
    }
  },
  "gaps": {
    "missing": [
      {
        "field": "order",
        "label": "Order",
        "note": "No source we use gives this yet."
      },
      {
        "field": "common_names",
        "label": "Common names",
        "note": "No source we use gives this yet."
      },
      {
        "field": "named_after",
        "label": "Named after",
        "note": "No source we use gives this yet."
      }
    ],
    "single_source": [
      {
        "field": "authority",
        "label": "Authority",
        "source": "PBDB"
      },
      {
        "field": "type_species",
        "label": "Type species",
        "source": "PBDB"
      },
      {
        "field": "parent_name",
        "label": "Parent group",
        "source": "PBDB"
      },
      {
        "field": "family",
        "label": "Family",
        "source": "PBDB"
      },
      {
        "field": "headline",
        "label": "Age (headline)",
        "source": "PBDB"
      }
    ],
    "disputed": [],
    "withheld": [
      {
        "records": "occurrences",
        "status": "tentative",
        "count": 1,
        "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": [],
  "credits": {
    "genus": "Macroolithus",
    "scope": "confirmed matches only",
    "data_sources": [
      {
        "values": 2,
        "retrieved": [],
        "source": "omnisaura",
        "license_id": "OMNISAURA-EDITORIAL",
        "license_name": "Omnisaura editorial content (© Future Sailors, all rights reserved)",
        "license_url": "https://github.com/FutureSailorDesign/Omnisaura-/blob/main/docs/licences/omnisaura-editorial.md",
        "requires_attribution": true,
        "attribution": "Omnisaura editorial decisions © Future Sailors",
        "source_name": "Omnisaura editorial",
        "homepage": null
      },
      {
        "values": 2552,
        "retrieved": [
          "2026-10-04",
          "2026-10-05",
          "2026-10-10",
          "2026-10-11"
        ],
        "source": "pbdb",
        "license_id": "CC-BY-4.0",
        "license_name": "Creative Commons Attribution 4.0",
        "license_url": "https://creativecommons.org/licenses/by/4.0/",
        "requires_attribution": true,
        "attribution": "Data from the Paleobiology Database (https://paleobiodb.org), licensed CC BY 4.0.",
        "source_name": "Paleobiology Database",
        "homepage": "https://paleobiodb.org"
      },
      {
        "values": 16,
        "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": 19,
        "retrieved": [
          "2026-10-11"
        ],
        "source": "wikidata",
        "license_id": "CC0-1.0",
        "license_name": "Creative Commons Zero 1.0 (public domain dedication)",
        "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
        "requires_attribution": false,
        "attribution": "Data from Wikidata (https://www.wikidata.org), CC0 1.0.",
        "source_name": "Wikidata",
        "homepage": "https://www.wikidata.org"
      }
    ],
    "images": [
      {
        "media_id": 3871,
        "title": "File:Macroolithus sp - later cretaceous Jiangxi IMG 5164 Beijing Museum of Natural History.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/5/52/Macroolithus_sp_-_later_cretaceous_Jiangxi_IMG_5164_Beijing_Museum_of_Natural_History.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:Macroolithus_sp_-_later_cretaceous_Jiangxi_IMG_5164_Beijing_Museum_of_Natural_History.jpg",
        "source": "commons",
        "rights_holder": "Bjoertvedt",
        "catalog_number": null,
        "license_id": "CC-BY-SA-4.0",
        "license_name": "Creative Commons Attribution-ShareAlike 4.0",
        "license_url": "https://creativecommons.org/licenses/by-sa/4.0/",
        "requires_attribution": true,
        "share_alike": true,
        "attribution": "Bjoertvedt (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Macroolithus_sp_-_later_cretaceous_Jiangxi_IMG_5164_Beijing_Museum_of_Natural_History.jpg)"
      },
      {
        "media_id": 3872,
        "title": "File:TwoMacroo.jpg",
        "category": "Taxon image",
        "url": "https://upload.wikimedia.org/wikipedia/commons/a/ab/TwoMacroo.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
        "page_url": "https://commons.wikimedia.org/wiki/File:TwoMacroo.jpg",
        "source": "commons",
        "rights_holder": "Wiemann et al.",
        "catalog_number": null,
        "license_id": "CC-BY-SA-4.0",
        "license_name": "Creative Commons Attribution-ShareAlike 4.0",
        "license_url": "https://creativecommons.org/licenses/by-sa/4.0/",
        "requires_attribution": true,
        "share_alike": true,
        "attribution": "Wiemann et al. (Wiemann, Jasmina; Yang, Tzu-Ruei; Sander, N. N. Sander; Schneider, Marion; Engeser, Marianne; Kath-Schorr, Stephanie; Müller, Christa E.; Sander, P. Martin (2015). \"The blue-green eggs of dinosaurs: How fossil metabolites provide insights into the evolution of bird reproduction\". PeerJ Preprints. 3: e1323. doi:10.7287/peerj.preprints.1080v1), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:TwoMacroo.jpg)"
      }
    ],
    "derived_ages": null,
    "references": 50
  },
  "credits_markdown": "## Macroolithus: Sources & credits\n\n_Scope: confirmed matches only._\n\n### Data\n- **Omnisaura editorial**: [Omnisaura editorial content (© Future Sailors, all rights reserved)](https://github.com/FutureSailorDesign/Omnisaura-/blob/main/docs/licences/omnisaura-editorial.md). Omnisaura editorial decisions © Future Sailors\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 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 11 October 2026. _Credited as a courtesy: this licence doesn't require attribution._\n\n### Images (2)\n- “File:Macroolithus sp - later cretaceous Jiangxi IMG 5164 Beijing Museum of Natural History.jpg” (Taxon image): Bjoertvedt (Own work), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Macroolithus_sp_-_later_cretaceous_Jiangxi_IMG_5164_Beijing_Museum_of_Natural_History.jpg). [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/). Shown unmodified (share-alike licence).\n- “File:TwoMacroo.jpg” (Taxon image): Wiemann et al. (Wiemann, Jasmina; Yang, Tzu-Ruei; Sander, N. N. Sander; Schneider, Marion; Engeser, Marianne; Kath-Schorr, Stephanie; Müller, Christa E.; Sander, P. Martin (2015). \"The blue-green eggs of dinosaurs: How fossil metabolites provide insights into the evolution of bird reproduction\". PeerJ Preprints. 3: e1323. doi:10.7287/peerj.preprints.1080v1), via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:TwoMacroo.jpg). [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/). Shown unmodified (share-alike licence).\n\n### Scientific references\n\n50 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": "egg",
  "identifiers": [
    {
      "scheme": "pbdb",
      "name": "Paleobiology Database",
      "id": "67183",
      "url": "https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=67183"
    },
    {
      "scheme": "enwiki",
      "name": "Wikipedia (English)",
      "id": "Macroolithus",
      "url": "https://en.wikipedia.org/wiki/Macroolithus"
    },
    {
      "scheme": "wikidata",
      "name": "Wikidata",
      "id": "Q6725482",
      "url": "https://www.wikidata.org/wiki/Q6725482"
    }
  ],
  "other_names": {
    "species": [
      "Macroolithus lashuyuanensis",
      "Macroolithus mutabilis",
      "Macroolithus rugustus",
      "Macroolithus yaotunensis"
    ],
    "synonyms": []
  },
  "original_description": {
    "citation": "Z.-K. Zhao (1975). [The microstructures of the dinosaurian eggshells of Nanxiong Basin, Guandong province. (1) On the classification of dinosaur eggs]. Vertebrata PalAsiatica 13(2): 105–117.",
    "authors": "Z.-K. Zhao",
    "year": 1975,
    "title": "[The microstructures of the dinosaurian eggshells of Nanxiong Basin, Guandong province. (1) On the classification of dinosaur eggs]",
    "publication": "Vertebrata PalAsiatica",
    "volume": "13",
    "issue": "2",
    "pages": "105–117",
    "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": "medium",
      "reasons": [
        "Only PBDB gives this; its author and year match the naming authority (Zhao 1975)."
      ]
    },
    "source": "pbdb",
    "source_name": "Paleobiology Database",
    "license_id": "CC-BY-4.0",
    "pbdb_reference_no": "14214"
  },
  "summary": "Omnisaura summary: Macroolithus, Zhao 1975\n\n- What it is: Known only from fossil eggs: the name is for the eggs themselves (an oogenus), and which dinosaur laid them is usually not known for certain.\n- Named by: Zhao 1975 (medium confidence: only PBDB gives this; nothing contradicts it).\n- Family: Elongatoolithidae (medium confidence: only PBDB gives this; nothing contradicts it).\n- Parent group: Elongatoolithidae (medium confidence: only PBDB gives this; nothing contradicts it).\n- Type species: Macroolithus rugustus (medium confidence: only PBDB gives this; nothing contradicts it).\n- Age, as published by the Paleobiology Database: Hauterivian to Maastrichtian, 132.6–66 million years ago (medium confidence: only PBDB gives this; nothing contradicts it).\n- Age, Omnisaura's own calculation (not a published figure): 100.5–66 million years ago (medium confidence: Omnisaura's calculation from 49 confirmed PBDB records).\n- Fossils found in: China (medium: only PBDB records it (42 records)); Mongolia (medium: only PBDB records it (6 records)); Spain (low: only one PBDB record); Kazakhstan (low: only one PBDB record).\n- Rock formations: Nemegt (medium: only PBDB records it (4 records)); Pingling (medium: only PBDB records it (14 records)); Yuanpu (medium: only PBDB records it (6 records)); Zhenshui (medium: only PBDB records it (7 records)); Zhutian (medium: only PBDB records it (9 records)); Baruungoyot (low: only one PBDB record); Djadokhta (low: only one PBDB record); Dongyuan (low: only one PBDB record); El Castellar (low: only one PBDB record); Hekou (low: only one PBDB record); Nanchao (low: only one PBDB record); Tayzhuzgen (low: only one PBDB record).\n- Original description: Z.-K. Zhao (1975). [The microstructures of the dinosaurian eggshells of Nanxiong Basin, Guandong province. (1) On the classification of dinosaur eggs]. Vertebrata PalAsiatica 13(2): 105–117. (medium confidence: only PBDB gives this; its author and year match the naming authority (Zhao 1975)).\n\nNot known or disputed:\n- Order: 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 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); Omnisaura editorial (OMNISAURA-EDITORIAL); Paleobiology Database (CC-BY-4.0); Wikidata (CC0-1.0)."
}