{"refrec":{"BRefID":405183,"RR":"<b>Sluijs, A.; Brinkhuis, H.</b> (2024). High Arctic late Paleocene and early Eocene dinoflagellate cysts. <i>J. Micropalaeontol. 43(2)</i>: 441-474. <a href=\"https://dx.doi.org/10.5194/jm-43-441-2024\" target=\"_blank\">https://dx.doi.org/10.5194/jm-43-441-2024</a>","BEntID":402978,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>J. Micropalaeontol. 43(2)</i>: 441-474. <a href=\"https://dx.doi.org/10.5194/jm-43-441-2024\" target=\"_blank\">https://dx.doi.org/10.5194/jm-43-441-2024</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Sluijs, A.; Brinkhuis, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Sluijs, A.; Brinkhuis, H.","Englishabstract":"<span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">Palynomorphs, notably sporomorphs and organic-walled dinoflagellate cysts, or “dinocysts”, are the only abundant microfossils consistently present in the sole available central Arctic upper Paleocene to lower Eocene sedimentary succession recovered at the central Lomonosov Ridge by the Integrated Ocean Drilling Program (IODP) Expedition 302 (or the Arctic Coring Expedition, ACEX) in 2004, close to the North Pole. While the analysis and interpretation of a part of these assemblages have so far guided many major stratigraphic, climatological, and paleoenvironmental findings from ACEX, intrinsic details, notably of the dinocyst taxa and assemblages, have not yet been addressed. Here, we present new ACEX dinocyst data for the interval spanning the latest Paleocene to the earliest Eocene (∼56.5–53.8 Ma; cores 32X–27X) and integrate these with previous results. We develop a pragmatic taxonomic framework, document critical biostratigraphic events, and propose two new genera (</span><i>Guersteinia</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\"> and </span><i>Sangiorgia</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">) and seven new species (</span><i>Batiacasphaera obohikuenobeae</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">, </span><i>Chaenosphaerula sliwinskae</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">, </span><i>Heterolaucacysta pramparoae,</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\"> </span><i>Pyxidinopsis iakovlevae</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">, </span><i>Sangiorgia pospelovae</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">, </span><i>Sangiorgia marretiae</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">, and </span><i>Spiniferella crouchiae</i><span style=\"background-color:rgb(255,255,255);color:rgb(70,70,70);\">). In addition, we interpret trends and aberrations in dinocyst assemblages in terms of variability in regional temperature, hydrology, and tectonism across the long-term and the Paleocene–Eocene Thermal Maximum (PETM) and Eocene Thermal Maximum 2 (ETM2) global warming phases.</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"High Arctic late Paleocene and early Eocene dinoflagellate cysts","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:59.777482","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2024,"MonPub":null,"DateUpdate":"2025-01-07","DateCreate":"2025-01-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.5194/jm-43-441-2024"},"refs":null,"anarec":{"AnaID":405183,"PubliDate":2024,"Pagination":"441-474","XtraPublOfAnaID":null,"ISBN":null,"Volume":"43","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":115133,"SerRR":"Journal of Micropalaeontology. Geological Society: London.  ISSN 0262-821X; e-ISSN 2041-4978","StandardTitleSer":"Journal of Micropalaeontology","ISSN":"0262-821X","AbbrevSer":"J. Micropalaeontol.","StandardTitleMon":null,"StartPage":441,"Pages":34,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Sluijs","Firstname":"Appy","Initials":"A.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":402978,"AutID":53200,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Brinkhuis","Firstname":"Henk","Initials":"H.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":402978,"AutID":233537,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"OCS","InsFSN":"Koninklijk Nederlands Instituut voor Onderzoek der Zee; Ocean Sciences","ORCID":null,"PersID":3502,"InsID":13654}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":402978,"BEntPrivate":null,"availability":[{"BInstID":411098,"LibID":2779,"BRefID":405183,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"411098","RFID":null,"PaidValue":null,"Medium":"Server","Description":null,"Acronym":null,"Library":"NIOZ","DutchTerm":null,"URL":null,"ClassifID":260,"Classification":"NIOZ Open Repository","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":null,"LoggedInReq":null,"Disclaimer":"Disclaimer_NIOZ","DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":397,"FileFormID":6,"LendableFlag":null,"PublicFlag":1,"orderLib":"NIOZ","Notes":null,"AccConID":21,"AccessConstraint":"Attribution (CC BY)","LicURL":"https://creativecommons.org/licenses/by/4.0/"}],"litstyles":null,"thespers":null,"arch2discl":805,"SERpubls":[{"PublName":"Geological Society","City":"London"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":{"805":{"SpName":"Koninklijk Nederlands Instituut voor Onderzoek der Zee","SpColID":805,"ParSpColID":null,"TopParID":null,"ShortName":"NIOZ","URLLocation":"https://www.vliz.be/imis/nioz/imis.php?refid=","LibID":2779,"OpenRepoFlag":1,"SpTypID":1,"TopParIDNotWebsite":null,"SpColPath":"NIOZ"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":402978,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":402978,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.5194/jm-43-441-2024","externalID":"10.5194/jm-43-441-2024","URLTypeCode":"DOI","URLID":139470,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"daan.van.loon@nioz.nl","newSesDate":{"date":"2025-01-07 13:55:41.123000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"daan.van.loon@nioz.nl","updSesDate":{"date":"2025-01-07 13:55:41.123000","timezone_type":3,"timezone":"Europe/Brussels"}}}