Oligocene and early Miocene charophyte flora from the Sivas Basin (Central Anatolia, Turkiye). Biostratigraphy and palaeobiogeography

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dc.contributor.authorSanjuan, Josep
dc.contributor.authorDemirci, Elvan
dc.contributor.authorKangal, Ozgen
dc.contributor.authorOzgen-Erdem, Nazire
dc.date.accessioned2025-05-04T16:47:01Z
dc.date.available2025-05-04T16:47:01Z
dc.date.issued2025
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractA rich charophyte assemblage is described and illustrated here from the Upper Paleogene-Lower Neogene lacustrine and palustrine rocks of the Sivas Basin (central Anatolia, Turkiye). The flora was extracted from 3 stratigraphic sections located in the eastern part of the Sivas Basin in the localities of Emirhan, Egribucak, and Taslidere. Nine species belonging to two families (Characeae and Raskyllaceae) are identified here. The Characeae species from Emirhan and Taslidere (Emirhan and Karayun formations) are diverse and the assemblage is represented by Sphaerochara ulmensis, Sphaerochara sp., Chara molassica var. notata, Ch. cf. pappii, Chara sp., Hornichara sp., Lychnothamnus pinguis forma major and Nitellopsis (Tectochara) merianii. Several of these species display a wide biostratigraphic range in Europe spanning from the early Oligocene to middle Miocene. The cooccurrence of L. pinguis and Ch. molassica var. notata suggests that both the Emirhan and Karayun formations are upper Rupelian-lower Chattian (similar to 30-25 Ma). In terms of paleogeography, this flora displays a clear European affinity. The charophyte flora recovered from the Egribucak locality (Unit 3 of the Egribucak Formation) is composed of the single species Rantzieniella nitida which displays a limited biostratigraphic range within the Aquitanian (early Miocene). Accordingly, Unit 3 of the Egribucak Formation can be correlated with the homonymous European charophyte biozone as well as with the Mammal Neogene Zones MN1-2 (similar to 24-21 Ma). Moreover, the occurrence of this index species in central Anatolia confirms its Eurasian distribution highlighting the usefulness of R. nitida in intercontinental basin correlation.
dc.description.sponsorshipSpanish Ministry of Science and Innovation [(PID2020-113912GB-100)]; AGAUR (Catalan Autonomous Government) [2022 SGR 00349]; Scientific and Technological Research Council of Trkiye [TBI bull; TAK-AYDAG-109Y041]; Tasneem Ahmed and Michael Maudsley of the Language Services of the University of Barcelona
dc.description.sponsorshipThis is a contribution to the project IBERINSULA (PID2020-113912GB-100) funded by the Spanish Ministry of Science and Innovation and the project Geologia Sedimentaria (2022 SGR 00349) of the AGAUR (Catalan Autonomous Government) , with support from the Scientific and Technological Research Council of Tuerkiye (TUEBI center dot TAK-CAYDAG-109Y041) . Drs Khaled Trabelsi and Mehmet Serkan Akkiraz reviewed and greatly improved this manuscript. The English was revised by Tasneem Ahmed and Michael Maudsley of the Language Services of the University of Barcelona. The authors express their gratitude to Dr. Ingeborg Soulie -Marsche for providing the samples studied herein and for offering preliminary charophyte identifications, including Rantzienella nitida.
dc.identifier.doi10.1016/j.revpalbo.2025.105281
dc.identifier.issn0034-6667
dc.identifier.issn1879-0615
dc.identifier.scopus2-s2.0-85214454173
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.revpalbo.2025.105281
dc.identifier.urihttps://hdl.handle.net/20.500.12418/35453
dc.identifier.volume334
dc.identifier.wosWOS:001400066000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofReview of Palaeobotany and Palynology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250504
dc.subjectCharophyta
dc.subjectSivas
dc.subjectAnatolia
dc.subjectOligocene
dc.subjectMiocene
dc.subjectBiostratigraphy
dc.subjectPalaeobiogeography
dc.titleOligocene and early Miocene charophyte flora from the Sivas Basin (Central Anatolia, Turkiye). Biostratigraphy and palaeobiogeography
dc.typeArticle

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