georefid:2013-020744SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2013-020744<gco:CharacterString>Early to early Miocene radiolarian biostratigraphy for the low-latitude Pacific Ocean</gco:CharacterString>2012-01-01publicationgeorefid:2013-020744Kamikuri, Shin-ichiIbaraki University, Faculty of Education, Ibaraki, JapanauthorMoore, Theodore C.University of Michigan, United StatesauthorOgane, KaoruNational Museum of Nature and Science, JapanauthorSuzuki, NoritoshiTohoku University, JapanauthorPalike, HeikoNational Oceanography Centre, United KingdomauthorNishi, HiroshiauthorMicropaleontology Press, New York, NY, United StatespublisherdocumentHardcopyStratigraphy9 (1)77-108A total of 226 early Eocene to early Miocene radiolarian datum events are identified and correlated with the geochronologic time scale at Sites U1331, U1332, and U1333 in the equatorial Pacific Ocean. Seven new radiolarian subzones are proposed for the low-latitude Oligocene: Eucyrtidium diaphanes Interval Subzone (RP22b); Calocycletta (Calocycletta) robusta Interval Subzone (RP22a); Lychnocanoma apodora Interval Subzone (RP21b); Theocyrtis annosa Interval Subzone (RP21a); Eucyrtidium plesiodiaphanes Interval Subzone (RP20c); Dorcadospyris pseudopapilio Interval Subzone (RP20b); Lithocyclia angusta Interval Subzone (RP20a). These subzones significantly improve the biostratigraphic resolution within the Oligocene (an average of one subzone per 1.6 million years [my]). Our study corroborates previous studies, which inferred that primary Oligocene datums were synchronous in the low-latitude Pacific. Four Eocene zones, Cryptocarpium ornatum (RP19), Calocyclas bandyca (RP18), Phormocyrtis striata striata (RP9), and Buryella clinata (RP8) are emended. Two new species/subspecies, Lychnocanoma klausi and Theocorys anaclasta clasta, are described.completedStratigraphyassemblagesbiostratigraphybiozonesCenozoicEast PacificEoceneExpedition 320Expeditions 320/321faunal listIntegrated Ocean Drilling ProgramInvertebrataIODP Site U1331IODP Site U1332IODP Site U1333lithostratigraphylower MioceneLychnocanoma klausimicrofossilsMiocenemorphologyNeogenenew taxaNorth PacificNortheast PacificOligocenePacific OceanPaleogeneProtistaRadiolariataxonomyTertiaryTheocorys anaclasta clastaurn:org.iodp:exp:320urnlargerWorkCitationcampaignurn:org.iodp:exp:320:site:U1331urnlargerWorkCitationstudyurn:org.iodp:exp:320urnlargerWorkCitationcampaignurn:org.iodp:exp:320:site:U1332urnlargerWorkCitationstudyurn:org.iodp:exp:320urnlargerWorkCitationcampaignurn:org.iodp:exp:320:site:U1333urnlargerWorkCitationstudyurn:org.iodp:exp:320urnlargerWorkCitationcampaignEnglishgeoscientificInformation-142.0942-138.251010.310512.0405