Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Not filed under any topic yet.

Assessment

Why?

Strongest counted support: The article identifies one incomplete holotype from Liaoning and dates its formation to approximately 120 million years ago. weight 1.800000 evidence

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Evidence for

• The article identifies one incomplete holotype from Liaoning and dates its formation to approximately 120 million years ago.

  From A polyphyodont, semiaquatic eutriconodontan mammal from the Early Cretaceous of China Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The article explicitly presents tooth-generation and semiaquatic conclusions as interpretations from observed morphology and locomotor analysis.

  From A polyphyodont, semiaquatic eutriconodontan mammal from the Early Cretaceous of China Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The locomotor comparison used 13 indices measured across 124 extant species, including nine semiaquatic species.

  From A polyphyodont, semiaquatic eutriconodontan mammal from the Early Cretaceous of China Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

None.

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

From	Relationship	To
c889133c	NARROWS	efd27530

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	73e6b685, 61f1c402, e8db93dc

Summary

Contribution history

seq	event	detail
25426	APPENDED
25427	ACCEPT	AUTOMATIC_AFTER_VALIDATION
25435	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "303c930b-d8a0-8a38-bfa2-c6a9c889133c",
  "links": [
    {
      "link": "331ceaa5-fc34-88b5-b096-c5e873e6b685",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "d6a3fb9c-649f-8db0-b757-1d0d1092f75e",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "ARCHAEOLOGICAL",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    },
    {
      "link": "f78afe58-4db5-8ff3-930a-038261f1c402",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "45647b97-ff7e-8eb7-b8f3-ab16294cb185",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    },
    {
      "link": "fd3c76b0-26eb-8afb-ba8b-46dee8db93dc",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "aff877a4-de2e-83fc-8df4-8ce78c07d88c",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DATASET_RESULT",
      "source_type": "PRIMARY_TEXT",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.0214",
    "permissive": "0.9991",
    "conservative": "0.9777"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "HIGH",
  "claim_type": "OBSERVATIONAL",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.9955",
  "provisional": true,
  "evidence_sum": "5.400000",
  "snapshot_seq": 25436,
  "prior_log_odds": "0.000000",
  "support_groups": 3,
  "model_dependent": false,
  "review_coverage": "0.25",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [],
      "ok": false
    },
    "opposing_search_done": {
      "by": [],
      "ok": false
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [
        "331ceaa5-fc34-88b5-b096-c5e873e6b685",
        "f78afe58-4db5-8ff3-930a-038261f1c402",
        "fd3c76b0-26eb-8afb-ba8b-46dee8db93dc"
      ],
      "ok": true
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "5.400000",
  "not_applicable_reason": null,
  "independence_unreviewed": 3
}