{"id":"https://openalex.org/W2269325919","doi":null,"title":"Molluscan radula from earliest Cambrian","display_name":"Molluscan radula from earliest Cambrian","publication_year":1974,"publication_date":"1974-11-01","ids":{"openalex":"https://openalex.org/W2269325919","mag":"2269325919"},"language":"en","primary_location":{"id":"mag:2269325919","doi":null,"is_oa":false,"landing_page_url":"https://jpaleontol.geoscienceworld.org/content/48/6/1109","pdf_url":null,"source":{"id":"https://openalex.org/S143791635","display_name":"Journal of Paleontology","issn_l":"0022-3360","issn":["0022-3360","1937-2337"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Journal of Paleontology","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5029754765","display_name":"Jean B. Firby","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jean B. Firby","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5111614488","display_name":"J. Wyatt Durham","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. Wyatt Durham","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3550,"currency":"USD","value_usd":3550},"apc_paid":null,"fwci":0.855,"has_fulltext":false,"cited_by_count":30,"citation_normalized_percentile":{"value":0.72,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"48","issue":"6","first_page":"1109","last_page":"1119"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.8442000150680542,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.8442000150680542,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10955","display_name":"Paleontology and Evolutionary Biology","score":0.14059999585151672,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11354","display_name":"Evolution and Paleontology Studies","score":0.00570000009611249,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/radula","display_name":"radula","score":0.777999997138977},{"id":"https://openalex.org/keywords/mollusca","display_name":"Mollusca","score":0.8679999709129333},{"id":"https://openalex.org/keywords/cephalopods","display_name":"cephalopods","score":0.984000027179718},{"id":"https://openalex.org/keywords/ilmenite","display_name":"ilmenite","score":0.6819999814033508},{"id":"https://openalex.org/keywords/fossil-molluscs","display_name":"fossil molluscs","score":0.4790000021457672}],"concepts":[{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.7865621447563171},{"id":"https://openalex.org/C71640776","wikidata":"https://www.wikidata.org/wiki/Q16521","display_name":"Taxon","level":2,"score":0.704875648021698},{"id":"https://openalex.org/C2776249982","wikidata":"https://www.wikidata.org/wiki/Q25326","display_name":"Mollusca","level":2,"score":0.6248080730438232},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.6140855550765991},{"id":"https://openalex.org/C2779870107","wikidata":"https://www.wikidata.org/wiki/Q43010","display_name":"Quartz","level":2,"score":0.5124359726905823},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.42367738485336304},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.3221922516822815},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.07936221361160278},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:2269325919","doi":null,"is_oa":false,"landing_page_url":"https://jpaleontol.geoscienceworld.org/content/48/6/1109","pdf_url":null,"source":{"id":"https://openalex.org/S143791635","display_name":"Journal of Paleontology","issn_l":"0022-3360","issn":["0022-3360","1937-2337"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Journal of Paleontology","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4361302402","https://openalex.org/W2177460116","https://openalex.org/W1838761162","https://openalex.org/W2912904045","https://openalex.org/W4210350777","https://openalex.org/W4214868982","https://openalex.org/W2019680732","https://openalex.org/W4229002109","https://openalex.org/W2001245937","https://openalex.org/W7099632441"],"abstract_inverted_index":{"The":[0],"taxon":[1],"is":[2,15,25],"assigned":[3],"to":[4,8],"Mollusca":[5],"and":[6],"provisionally":[7],"Cephalopoda;":[9],"the":[10,13],"mineralogy":[11],"of":[12,20,27,29],"specimens":[14],"unexpected":[16],"for":[17],"a":[18,32],"structure":[19],"organic":[21],"origin;":[22],"each":[23],"denticle":[24],"composed":[26],"grains":[28],"ilmenite":[30],"in":[31],"quartz":[33],"matrix":[34]},"counts_by_year":[{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-09-12T09:15:50.089291","created_date":"2016-06-24T00:00:00"}
