{
  "version": 1,
  "reviewDate": "2026-10-10",
  "scope": "Scientific decision overlay for expanded-roster review; frozen PBDB records and historical screening checkpoints remain intact. This does not activate new live answers.",
  "candidateLimit": 5,
  "baseline": "dist/mamenchisaurid-locality-review.json",
  "cases": [
    {
      "genus": "Omeisaurus",
      "genusId": "38702",
      "guessAllowed": true,
      "hiddenAnswerStatus": "pending broader approval",
      "decision": "Correct the type occurrence member only",
      "explanation": "The type-bearing bed is above Daanzhai limestone, rather than in that member. Clear Daanzhai for occurrence 474577; retain Shaximiao and the unresolved Lower/Upper correlations. All other referrals and occurrences remain separate.",
      "releaseCondition": "Complete normal Expert placement and clue approval; this metadata correction itself does not require a genus hold.",
      "safeClues": [
        "Shaximiao formation at the type locality",
        "Recorded geography"
      ],
      "forbiddenClues": [
        "Daanzhai as the fossil-bearing member",
        "An exclusive Lower or Upper member for the type"
      ],
      "dossier": "omeisaurus-resolution.json"
    },
    {
      "genus": "Xinjiangtitan",
      "genusId": "287379",
      "guessAllowed": true,
      "hiddenAnswerStatus": "pending broader approval; geographic crowd resolved",
      "decision": "Preserve both Qiketai and Qigu; use secure geography",
      "explanation": "The inspected literature provides competing assignments for the same SSV 12001 specimen. Neither is sufficiently decisive to eliminate the other. Broad Jurassic and Xinjiang/Shanshan geography are usable; fine age and exclusive formation clues are not.",
      "releaseCondition": "Use Turpan Basin, Xinjiang, China rather than disputed formation, and complete normal Expert placement and clue approval.",
      "safeClues": [
        "Jurassic",
        "Xinjiang, China",
        "Shanshan / Piqan County, subject to complete comparison footprints",
        "Turpan Basin, Xinjiang, China"
      ],
      "forbiddenClues": [
        "Exclusive Qiketai or Qigu formation",
        "Middle versus Late Jurassic as a decisive clue",
        "Regional numeric age assigned directly to the specimen"
      ],
      "dossier": "xinjiangtitan-resolution.json"
    },
    {
      "genus": "Qijianglong",
      "genusId": "313709",
      "guessAllowed": true,
      "hiddenAnswerStatus": "hold: unresolved period",
      "decision": "Keep Suining and the reported Upper Shaximiao alternative",
      "explanation": "The original published assignment is Suining. The 2025 Upper Shaximiao reassignment cites unpublished surveys. Jurassic is a working interpretation, but regional Suining age research introduces a Cretaceous alternative. No direct published remap/date for the type quarry settles it. Treat period as unresolved in conservative comparisons.",
      "releaseCondition": "A specimen-specific horizon/date or an approved uncertainty-aware period clue. A single unqualified Jurassic profile is insufficient for release.",
      "safeClues": [
        "Qijiang / Chongqing, China"
      ],
      "forbiddenClues": [
        "Exclusive Suining or Upper Shaximiao formation",
        "An unqualified single-period answer",
        "Exact regional date treated as a direct specimen date"
      ],
      "dossier": "qijianglong-resolution.json"
    },
    {
      "genus": "Zigongosaurus",
      "genusId": "66512",
      "guessAllowed": true,
      "hiddenAnswerStatus": "hold: independent specimen identity and clue evidence",
      "decision": "Retain the accepted genus as a guess; hold the answer",
      "explanation": "The original paper gives specimen 02501 and material from at least four individuals. The accepted PBDB genus coexists with a doubtful original species record. Omeisaurus fuxiensis has a separately based type; modern use of Zigongosaurus does not settle the older composite associations. Do not impose a synonym or transfer fossils.",
      "releaseCondition": "A specimen-based revision or catalog-supported diagnosis/referral establishing a coherent independent answer and usable clues.",
      "safeClues": [],
      "forbiddenClues": [
        "Fossils transferred from a proposed synonym",
        "CV 00261 asserted as the original type",
        "Modern catalog numbers silently equated to the original"
      ],
      "dossier": "zigongosaurus-resolution.json"
    }
  ],
  "occurrenceCorrections": [
    {
      "id": "omeisaurus-type-member",
      "genusId": "38702",
      "occurrenceId": "474577",
      "collectionId": "47071",
      "expected": {
        "formation": "Shaximiao",
        "member": "Daanzhai",
        "state": "Sichuan"
      },
      "fields": {
        "member": ""
      },
      "dossier": "omeisaurus-resolution.json",
      "sourceIds": [
        "dong1983"
      ]
    }
  ],
  "occurrenceAlternatives": [
    {
      "id": "qijianglong-reported-remap",
      "genusId": "313709",
      "occurrenceId": "1253472",
      "collectionId": "165720",
      "expected": {
        "formation": "Suining"
      },
      "fields": {
        "formation": "Upper Shaximiao"
      },
      "certainty": "reported interpretation based on unpublished survey; same specimen",
      "dossier": "qijianglong-resolution.json",
      "sourceIds": [
        "dai2025"
      ]
    }
  ],
  "comparisonFactReviews": [
    {
      "genusId": "313709",
      "fields": {
        "periods": []
      },
      "reason": "Unresolved Jurassic/Cretaceous interpretation; unknown permits competing period clues without asserting a positive Cretaceous occurrence."
    }
  ],
  "anchorOverrides": [
    {
      "genusId": "287379",
      "field": "basin_state",
      "key": [
        "CN",
        "xinjiang",
        "turpan"
      ],
      "label": "Turpan Basin, Xinjiang, China",
      "genus": "Xinjiangtitan"
    },
    {
      "genusId": "313709",
      "field": "state",
      "key": [
        "CN",
        "chongqing"
      ],
      "label": "Chongqing, China",
      "genus": "Qijianglong"
    },
    {
      "genusId": "313240",
      "field": "state",
      "key": [
        "CN",
        "xizang"
      ],
      "label": "Tibet / Xizang, China",
      "genus": "Damalasaurus"
    },
    {
      "genusId": "65648",
      "field": "state",
      "key": [
        "CN",
        "xizang"
      ],
      "label": "Tibet / Xizang, China",
      "genus": "Microdontosaurus"
    }
  ],
  "basinReviews": [
    {
      "genusId": "287379",
      "occurrenceId": "1190808",
      "basin": "Turpan",
      "source": "Frozen collection153762 geogcomments: Piqan = Shanshan County, Turpan Basin; full specimen descriptions in xinjiangtitan-resolution.json."
    },
    {
      "genusId": "54863",
      "occurrenceId": "522076",
      "basin": "Junggar",
      "source": "Frozen collection53670 geogcomments explicitly names Junggar Basin; sources-c.json Bellusaurus positive footprint / bellus2018."
    },
    {
      "genusId": "66626",
      "occurrenceId": "1107999",
      "basin": "Junggar",
      "source": "Frozen collection140200 geogcomments explicitly names eastern Junggar Basin; sources-c.json Klamelisaurus positive footprint / klamel2020."
    },
    {
      "genusId": "58889",
      "occurrenceId": "458375",
      "basin": "Turpan",
      "source": "Frozen collection45172 geogcomments explicitly names Turpan Basin; sources-c.json Hudiesaurus positive footprint / hudies2021."
    },
    {
      "genusId": "446268",
      "occurrenceId": "1584287",
      "basin": "Turpan",
      "source": "sources-b.json Rhomaleopakhus type footprint / full upchurch2021, Qiketai-Shanshan-Turpan locality. Distinct forelimb quarry, not identical Hudiesaurus type."
    },
    {
      "genusId": "38703",
      "occurrenceId": "522040",
      "basin": "Junggar",
      "source": "Frozen collection53658 geogcomments explicitly names Junggar Basin. Other two Tienshanosaurus referrals remain basin-unknown."
    },
    {
      "genusId": "54863",
      "assertionId": "asian-sauropod-15",
      "basin": "Junggar",
      "source": "sources-c.json Bellusaurus positive footprint / bellus2018. Reopened original Konglonggou quarry, not a new basin."
    },
    {
      "genusId": "66626",
      "assertionId": "asian-sauropod-16",
      "basin": "Junggar",
      "source": "sources-c.json Klamelisaurus positive footprint / klamel2020. Kelamaili-Jiangjunmiao, eastern Junggar Basin."
    },
    {
      "genusId": "58889",
      "assertionId": "asian-sauropod-17",
      "basin": "Turpan",
      "source": "sources-c.json Hudiesaurus positive footprint / hudies2021. Qiketai-Shanshan-Turpan."
    },
    {
      "genusId": "446268",
      "assertionId": "asian-sauropod-17",
      "basin": "Turpan",
      "source": "sources-b.json Rhomaleopakhus type footprint / full upchurch2021. Type forelimb locality separately supported."
    }
  ],
  "diagnosticAnchors": [
    {
      "genusId": "287379",
      "field": "state",
      "key": [
        "CN",
        "xinjiang"
      ],
      "label": "Xinjiang, China",
      "genus": "Xinjiangtitan"
    }
  ]
}