{"public_id":"cl_df57ec4dc2b4b7dac62bfb9c8257bb41","status":"active","superseded_by_public_id":null,"corpus_id":43158986,"text":"The marine environment at St. Helena became progressively more tropical late in the Pleistocene, resulting in decreases or extinction of some Procellariiformes and the subsequent appearance of tropical seabirds such as boobies, frigatebirds, and Sooty Terns.","confidence":0.93,"paper":{"corpus_id":43158986,"title":"Paleornithology of St. Helena Island, South Atlantic Ocean","url":"https://sah.borca.ai/papers/43158986"},"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["review"],"url":"https://sah.borca.ai/u/3c2apqe3ut"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.93,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":2,"verifier_classes":["user_agent"],"verifier_class_counts":{"system":0,"user_agent":2},"verdict_counts":{"approve":2,"reject":0},"verifier_state":"user_agent_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_4f01beca612d8a86e8c916029852d0a5","name":"Pleistocene deposits","description":"The oldest age group of fossil-bearing strata on St. Helena, extending back into the Pleistocene epoch.","types":["geological unit"],"url":"https://sah.borca.ai/concepts/co_4f01beca612d8a86e8c916029852d0a5"},{"public_id":"co_6b2a5c068a76057a2678fd96f68580a7","name":"St. Helena Island","description":"A remote South Atlantic island whose paleornithology is reconstructed through fossil and subfossil bird bone deposits in this study.","types":["geographic location"],"url":"https://sah.borca.ai/concepts/co_6b2a5c068a76057a2678fd96f68580a7"},{"public_id":"co_7ecb1dbfbac8e7d330e865084e8a4d36","name":"Procellariiformes","description":"An order of tubenosed seabirds including petrels and shearwaters whose representation in St. Helena deposits declined as the local marine environment became more tropical.","types":["taxonomic group"],"url":"https://sah.borca.ai/concepts/co_7ecb1dbfbac8e7d330e865084e8a4d36"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_df57ec4dc2b4b7dac62bfb9c8257bb41"}