{"id":"https://openalex.org/W7218933341","doi":"https://doi.org/10.2517/prpsj.260005","title":"Fish fossils from the Middle Pleistocene Saginota Formation of the Ihara Group, Fuji, Shizuoka, Japan","display_name":"Fish fossils from the Middle Pleistocene Saginota Formation of the Ihara Group, Fuji, Shizuoka, Japan","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7218933341","doi":"https://doi.org/10.2517/prpsj.260005"},"language":"en","primary_location":{"id":"doi:10.2517/prpsj.260005","doi":"https://doi.org/10.2517/prpsj.260005","is_oa":true,"landing_page_url":"https://doi.org/10.2517/prpsj.260005","pdf_url":null,"source":{"id":"https://openalex.org/S172004202","display_name":"Paleontological Research","issn_l":"1342-8144","issn":["1342-8144","1880-0068"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","poland-40","russia-white-list-3"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Paleontological Research","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.2517/prpsj.260005","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5156639284","display_name":"Saneatsu Hashimoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1298590031","display_name":"Shizuoka University","ror":"https://ror.org/01w6wtk13","country_code":"JP","type":"education","lineage":["https://openalex.org/I1298590031"]},{"id":"https://openalex.org/I150240954","display_name":"University of Shizuoka","ror":"https://ror.org/04rvw0k47","country_code":"JP","type":"education","lineage":["https://openalex.org/I150240954"]},{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Saneatsu Hashimoto","raw_affiliation_strings":["Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo","Department of Geosciences, Faculty of Science, Shizuoka University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo","institution_ids":["https://openalex.org/I74801974"]},{"raw_affiliation_string":"Department of Geosciences, Faculty of Science, Shizuoka University","institution_ids":["https://openalex.org/I1298590031","https://openalex.org/I150240954"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108641903","display_name":"Yuichiro Nishioka","orcid":"https://orcid.org/0009-0009-5105-503X","observed_orcids":["https://orcid.org/0009-0009-5105-503X"]},"institutions":[{"id":"https://openalex.org/I4210127768","display_name":"Museum of Natural and Environmental History, Shizuoka","ror":"https://ror.org/030z2kw43","country_code":"JP","type":"archive","lineage":["https://openalex.org/I4210127768"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuichiro Nishioka","raw_affiliation_strings":["Museum of Natural and Environmental History, Shizuoka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Museum of Natural and Environmental History, Shizuoka","institution_ids":["https://openalex.org/I4210127768"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5156464636","display_name":"Kenji Yokoyama","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210127768","display_name":"Museum of Natural and Environmental History, Shizuoka","ror":"https://ror.org/030z2kw43","country_code":"JP","type":"archive","lineage":["https://openalex.org/I4210127768"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kenji Yokoyama","raw_affiliation_strings":["Network for Shizuoka Prefecture Museum of Natural and Environmental History, Shizuoka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Network for Shizuoka Prefecture Museum of Natural and Environmental History, Shizuoka","institution_ids":["https://openalex.org/I4210127768"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086572792","display_name":"Julien Legrand","orcid":"https://orcid.org/0000-0002-8934-2271","observed_orcids":["https://orcid.org/0000-0002-8934-2271"]},"institutions":[{"id":"https://openalex.org/I1298590031","display_name":"Shizuoka University","ror":"https://ror.org/01w6wtk13","country_code":"JP","type":"education","lineage":["https://openalex.org/I1298590031"]},{"id":"https://openalex.org/I150240954","display_name":"University of Shizuoka","ror":"https://ror.org/04rvw0k47","country_code":"JP","type":"education","lineage":["https://openalex.org/I150240954"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Julien Legrand","raw_affiliation_strings":["Department of Geosciences, Faculty of Science, Shizuoka University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Geosciences, Faculty of Science, Shizuoka University","institution_ids":["https://openalex.org/I1298590031","https://openalex.org/I150240954"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"30","issue":"0","first_page":"209","last_page":"225"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10955","display_name":"Paleontology and Evolutionary Biology","score":0.4772999882698059,"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/T10955","display_name":"Paleontology and Evolutionary Biology","score":0.4772999882698059,"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":0.29980000853538513,"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/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.1881999969482422,"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/fossil-fish","display_name":"fossil fish","score":0.6669999957084656},{"id":"https://openalex.org/keywords/middle-pleistocene","display_name":"Middle Pleistocene","score":0.9610000252723694},{"id":"https://openalex.org/keywords/lateolabrax-japonicus","display_name":"Lateolabrax japonicus","score":0.9599999785423279},{"id":"https://openalex.org/keywords/mugil","display_name":"Mugil","score":0.9959999918937683},{"id":"https://openalex.org/keywords/musculista-senhousia","display_name":"Musculista senhousia","score":0.9950000047683716},{"id":"https://openalex.org/keywords/corbicula-japonica","display_name":"Corbicula japonica","score":1.0},{"id":"https://openalex.org/keywords/ichthyofauna","display_name":"ichthyofauna","score":0.9440000057220459},{"id":"https://openalex.org/keywords/brackish-environments","display_name":"brackish environments","score":0.6370000243186951},{"id":"https://openalex.org/keywords/sedimentary-facies","display_name":"sedimentary facies","score":0.7179999947547913},{"id":"https://openalex.org/keywords/fossil-identification","display_name":"fossil identification","score":0.4909999966621399}],"concepts":[{"id":"https://openalex.org/C53570757","wikidata":"https://www.wikidata.org/wiki/Q25546","display_name":"Pleistocene","level":2,"score":0.7749999761581421},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.6754000186920166},{"id":"https://openalex.org/C2909208804","wikidata":"https://www.wikidata.org/wiki/Q127282","display_name":"Fish <Actinopterygii>","level":2,"score":0.6394000053405762},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.5315999984741211},{"id":"https://openalex.org/C189984833","wikidata":"https://www.wikidata.org/wiki/Q3634677","display_name":"Vertebrate paleontology","level":2,"score":0.4122999906539917},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.40139999985694885},{"id":"https://openalex.org/C90856448","wikidata":"https://www.wikidata.org/wiki/Q431","display_name":"Zoology","level":1,"score":0.38589999079704285},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.3727000057697296},{"id":"https://openalex.org/C2776325015","wikidata":"https://www.wikidata.org/wiki/Q17092469","display_name":"Eutheria","level":5,"score":0.3474999964237213},{"id":"https://openalex.org/C2777775986","wikidata":"https://www.wikidata.org/wiki/Q444693","display_name":"Early Pleistocene","level":3,"score":0.32260000705718994},{"id":"https://openalex.org/C2778768285","wikidata":"https://www.wikidata.org/wiki/Q130942","display_name":"Theria","level":5,"score":0.26350000500679016}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2517/prpsj.260005","doi":"https://doi.org/10.2517/prpsj.260005","is_oa":true,"landing_page_url":"https://doi.org/10.2517/prpsj.260005","pdf_url":null,"source":{"id":"https://openalex.org/S172004202","display_name":"Paleontological Research","issn_l":"1342-8144","issn":["1342-8144","1880-0068"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","poland-40","russia-white-list-3"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Paleontological Research","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.2517/prpsj.260005","doi":"https://doi.org/10.2517/prpsj.260005","is_oa":true,"landing_page_url":"https://doi.org/10.2517/prpsj.260005","pdf_url":null,"source":{"id":"https://openalex.org/S172004202","display_name":"Paleontological Research","issn_l":"1342-8144","issn":["1342-8144","1880-0068"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","poland-40","russia-white-list-3"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Paleontological Research","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Life below water","id":"https://metadata.un.org/sdg/14","score":0.5769000053405762}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1502205607","https://openalex.org/W1933665609","https://openalex.org/W1983678963","https://openalex.org/W1985301186","https://openalex.org/W2039812994","https://openalex.org/W2051750497","https://openalex.org/W2057333750","https://openalex.org/W2097078033","https://openalex.org/W2155824679","https://openalex.org/W2171847450","https://openalex.org/W2324874079","https://openalex.org/W2493753557","https://openalex.org/W2500817663","https://openalex.org/W2806482989","https://openalex.org/W2898530654","https://openalex.org/W2955077152","https://openalex.org/W3126386347","https://openalex.org/W4211085441","https://openalex.org/W4230425257","https://openalex.org/W4248231884"],"related_works":["https://openalex.org/W3126386347","https://openalex.org/W2001496053","https://openalex.org/W6893403827","https://openalex.org/W7144141259","https://openalex.org/W2996232552","https://openalex.org/W2047366145","https://openalex.org/W4385301608","https://openalex.org/W427414396","https://openalex.org/W4401587895","https://openalex.org/W2093312490"],"abstract_inverted_index":{"While":[0],"the":[1,29,36,42,53,78,119,126,136,167,178,187,190,217],"Middle":[2,37],"Pleistocene":[3,38],"(Chibanian)":[4],"ichthyofauna":[5],"in":[6,45,194],"Japan":[7],"has":[8],"been":[9],"reconstructed":[10],"from":[11,28,52],"only":[12],"a":[13,93,100,105,111,140,146,162,195],"few":[14],"fossil":[15,50,79,179],"records":[16],"to":[17,166,229],"date,":[18],"three":[19],"well-preserved,":[20],"articulated":[21],"marine":[22,201,212],"fish":[23,58,221],"fossils":[24],"were":[25],"newly":[26],"found":[27],"middle":[30],"part":[31],"(ca.":[32],"0.58\u20130.57":[33],"Ma)":[34],"of":[35,41,125,143,150,177,189,219],"Saginota":[39,54,191],"Formation":[40,55,192],"Ihara":[43],"Group":[44],"Shizuoka,":[46],"central":[47],"Japan.":[48],"The":[49,122,174],"assemblage":[51],"comprises":[56],"two":[57,67],"species":[59],"(Lateolabrax":[60],"cf.":[61,84],"japonicus":[62,85],"and":[63,66,71,96,109,154,170,203,224],"Mugil":[64,132],"sp.)":[65],"mollusks":[68],"(Musculista":[69],"senhousia":[70],"Corbicula":[72],"japonica).":[73],"In":[74],"one":[75],"fossiliferous":[76],"block,":[77],"remains":[80,124],"identified":[81,130],"as":[82,131],"Lateolabrax":[83,223],"are":[86,129],"characterized":[87],"by:":[88],"(1)":[89,139],"ctenoid":[90],"scales":[91],"with":[92,104,161,182,199,205],"subrectangular":[94],"outline":[95],"rounded":[97],"corners;":[98],"(2)":[99,145],"dentary":[101],"bifurcating":[102],"posterodorsally":[103],"swollen":[106],"upper":[107],"ramus;":[108],"(3)":[110,155],"preopercle":[112],"bearing":[113],"five":[114],"or":[115,207],"more":[116],"spines":[117],"along":[118],"ventral":[120],"margin.":[121],"skeletal":[123],"other":[127],"specimens":[128],"sp.":[133],"based":[134],"on":[135],"presence":[137],"of:":[138],"pelvic-fin":[141],"formula":[142],"I,5;":[144],"pectoral":[147],"fin":[148],"consisting":[149],"16":[151],"soft":[152],"rays;":[153],"an":[156],"opercle":[157],"that":[158,186],"is":[159,214],"rounded-subtriangular,":[160],"small":[163],"process":[164],"anterior":[165],"articular":[168],"grooves":[169],"posteriorly":[171],"radiating":[172],"striae.":[173],"burial":[175],"conditions":[176],"specimens,":[180],"combined":[181],"sedimentary-facies":[183],"observations,":[184],"indicate":[185],"deposit":[188],"occurred":[193],"semi-enclosed":[196],"brackish":[197,230],"setting":[198],"intermittent":[200],"inflow":[202],"possibly":[204],"dysoxic":[206],"anoxic":[208],"bottom":[209],"waters.":[210],"This":[211],"environment":[213],"supported":[215],"by":[216],"occurrence":[218],"extant":[220],"genera,":[222],"Mugil,":[225],"primarily":[226],"inhabiting":[227],"inner-bay":[228],"areas.":[231]},"counts_by_year":[],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2026-10-04T00:00:00"}