{"id":"W4391440489","doi":"10.1186/s13227-024-00222-6","title":"The Cambrian fossil Pikaia, and the origin of chordate somites","year":2024,"lang":"en","type":"article","venue":"EvoDevo","topic":"Paleontology and Evolutionary Biology","field":"Earth and Planetary Sciences","cited_by":4,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Victoria","funders":"","keywords":"Chordate; Notochord; Biology; Body plan; Anatomy; Deuterostome; Somite; Paleontology; Spinal cord; Evolutionary biology; Vertebrate; Neuroscience; Embryo; Embryogenesis; Cell biology; Gene","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":[0.0002016028,0.000278193,0.0002710593,0.001130583,0.001956417,0.001389643,0.0004060624,0.0008180786,0.005030719],"category_scores_gemma":[0.001266487,0.0002436927,0.0001515891,0.001210172,0.003513194,0.001296866,0.00172572,0.0005385798,0.0008376784],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002652318,"about_ca_system_score_gemma":0.001279936,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.05473356,"about_ca_topic_score_gemma":0.1025135,"domain_scores_codex":[0.9997476,0.00002536412,0.00001323409,0.00009529635,0.00006328792,0.00005521766],"domain_scores_gemma":[0.9997093,0.00004006855,0.00009388918,0.00002658012,0.0000482646,0.0000818023],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.002037369,0.00007619843,0.6095229,0.001233994,0.0002357835,0.005837145,0.01223213,0.001982798,0.181468,0.05940703,0.001856489,0.1241102],"study_design_scores_gemma":[0.00001581681,0.00008604232,0.9769066,0.0001034173,0.00003803967,0.0008850955,0.001954118,0.0004001746,0.001866441,0.002737207,0.01498778,0.00001922755],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.945971,0.005940747,0.001437884,0.0006755551,0.00004441628,0.000021802,0.0003183564,0.00004492069,0.04554528],"genre_scores_gemma":[0.9964645,0.0008362894,0.0003879557,0.00006592222,0.00001600536,0.000006480355,0.0001138327,0.0000086809,0.002100257],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05473356,"threshold_uncertainty_score":0.10883,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00991174908087349,"score_gpt":0.2198568135528554,"score_spread":0.2099450644719819,"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."}}