{"id":"W2972754927","doi":"10.1038/s41586-019-1525-4","title":"A middle Cambrian arthropod with chelicerae and proto-book gills","year":2019,"lang":"en","type":"article","venue":"Nature","topic":"Marine Biology and Ecology Research","field":"Earth and Planetary Sciences","cited_by":64,"is_retracted":false,"has_abstract":false,"ca_institutions":"Royal Ontario Museum","funders":"","keywords":"Arthropod mouthparts; Appendage; Arthropod; Paleontology; Biology; Trilobite; Yixian Formation; Anatomy; Zoology; Ordovician; Mesozoic","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":[0.0001483611,0.0003021593,0.0001606264,0.0009208166,0.001846144,0.0008513697,0.0003559478,0.0008426427,0.01751702],"category_scores_gemma":[0.0003377385,0.0001501304,0.0001595846,0.000643932,0.001665831,0.001004189,0.0006561176,0.0004905229,0.002364764],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004302299,"about_ca_system_score_gemma":0.0004365923,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004951321,"about_ca_topic_score_gemma":0.01390056,"domain_scores_codex":[0.9999294,0.000008405802,0.00000383248,0.00002337942,0.00001373301,0.00002121481],"domain_scores_gemma":[0.9998232,0.00002918532,0.00001888266,0.00002516974,0.0000356353,0.00006803456],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.002072419,0.0001379711,0.08501048,0.0007764991,0.00008698912,0.008784022,0.00868236,0.0004554875,0.4328912,0.0731306,0.02480047,0.3631714],"study_design_scores_gemma":[0.00006821817,0.001164442,0.3811279,0.000471635,0.00008835937,0.01260862,0.00443992,0.0006749414,0.02021335,0.01085228,0.5682068,0.0000835816],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.756328,0.007145223,0.00836612,0.004405908,0.001242663,0.0001282061,0.001136485,0.0004631482,0.2207842],"genre_scores_gemma":[0.894134,0.00148873,0.01230348,0.001658548,0.0002091864,0.00002092733,0.0003801564,0.00007984265,0.08972497],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01751702,"threshold_uncertainty_score":0.05860019,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00668440129852457,"score_gpt":0.2157330011581262,"score_spread":0.2090485998596016,"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."}}