{"id":"W2134241091","doi":"10.1126/science.1213454","title":"Calibrating the End-Permian Mass Extinction","year":2011,"lang":"en","type":"article","venue":"Science","topic":"Paleontology and Stratigraphy of Fossils","field":"Earth and Planetary Sciences","cited_by":802,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary","funders":"","keywords":"Extinction event; Permian–Triassic extinction event; Extinction (optical mineralogy); Geology; Paleontology; Sedimentary rock; Earth history; Permian; Charcoal; Phanerozoic; Earth science; Physical geography; Environmental science; Structural basin; Geography; Chemistry","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00108709,0.0003722517,0.0002046563,0.001385519,0.0006272416,0.0005991594,0.0005410866,0.0003034796,0.001154678],"category_scores_gemma":[0.002261621,0.0001942165,0.0002025861,0.0008900876,0.0004914117,0.0004857412,0.00100015,0.0003443397,0.0002654051],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001002209,"about_ca_system_score_gemma":0.000553868,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01611203,"about_ca_topic_score_gemma":0.01960844,"domain_scores_codex":[0.9997929,0.00004437535,0.00001062148,0.00008188267,0.00003438128,0.00003597596],"domain_scores_gemma":[0.9995801,0.00007361406,0.0001054702,0.0000511517,0.0001242512,0.00006542003],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00005213455,0.00002099798,0.9664995,0.0000235667,0.00007193765,0.0001369004,0.0003740794,0.008382338,0.002503966,0.0008039339,0.0004497141,0.02068091],"study_design_scores_gemma":[0.00001226254,0.00003330273,0.9724141,0.00002233199,0.0000268432,0.0001371074,0.0003191952,0.02165492,0.001293432,0.001220523,0.002858113,0.000007870009],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9928535,0.0002480641,0.002575523,0.00007508235,0.0000137161,0.00001221188,0.0002163637,0.0000903767,0.003915094],"genre_scores_gemma":[0.9982871,0.00007746077,0.001093678,0.00001702,0.000007614513,0.000007318135,0.0003294182,0.00001728062,0.0001630838],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01611203,"threshold_uncertainty_score":0.03203648,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03341603581283944,"score_gpt":0.220524174639669,"score_spread":0.1871081388268296,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}