{"id":"W1973056168","doi":"10.1111/j.1469-185x.2012.00220.x","title":"<i>Pikaia gracilens</i>Walcott, a stem‐group chordate from the Middle Cambrian of British Columbia","year":2012,"lang":"en","type":"article","venue":"Biological reviews/Biological reviews of the Cambridge Philosophical Society","topic":"Paleontology and Stratigraphy of Fossils","field":"Earth and Planetary Sciences","cited_by":97,"is_retracted":false,"has_abstract":true,"ca_institutions":"Royal Ontario Museum; University of Toronto","funders":"","keywords":"Chordate; Anatomy; Notochord; Biology; Appendage; Extant taxon; Dorsum; Vertebrate; Evolutionary biology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":true,"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":[0.00005841246,0.0003626713,0.0002225842,0.001514256,0.002136562,0.001204527,0.000384459,0.0003517331,0.004757114],"category_scores_gemma":[0.0001076051,0.0001283116,0.0001394583,0.00125811,0.001028612,0.0003969633,0.0005429475,0.0003855869,0.001019026],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002655837,"about_ca_system_score_gemma":0.00213564,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.3823826,"about_ca_topic_score_gemma":0.6839206,"domain_scores_codex":[0.9999248,0.000002916585,0.000004044584,0.0000203297,0.00002823396,0.00001961827],"domain_scores_gemma":[0.999939,0.000003301421,0.00001896227,0.000002795247,0.00002260462,0.00001332836],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.0005817043,0.00003893361,0.1453192,0.002414046,0.0002086367,0.009091869,0.005572258,0.001130271,0.154161,0.01027609,0.03558405,0.635622],"study_design_scores_gemma":[0.00001693458,0.00009805521,0.664094,0.0004312716,0.00009378773,0.005576432,0.002422853,0.0003162324,0.004461029,0.000540934,0.3218826,0.0000658228],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7998934,0.04941457,0.003482261,0.001283977,0.00046672,0.0002056178,0.003670087,0.0007179222,0.1408654],"genre_scores_gemma":[0.9508468,0.00804843,0.004823861,0.0007225989,0.0000514891,0.00003179672,0.002340675,0.00007683282,0.03305759],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.6176174,"threshold_uncertainty_score":0.7603139,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1205036864514302,"score_gpt":0.2544533728569529,"score_spread":0.1339496864055227,"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."}}