Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy
Yıl: 2020 Cilt: 29 Sayı: 1 Sayfa Aralığı: 85 - 114 Metin Dili: İngilizce DOI: 10.3906/yer-1904-19 İndeks Tarihi: 05-05-2020
Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy
Öz: The Eocene-Oligocene transition corresponds to a significant biotic turnover globally. In shallow marine realms, the largerbenthic foraminifera (LBF) belonging to most nummulitids and all orthophragminids became extinct at or near the Eocene/Oligoceneboundary, reflecting the environmental deterioration. We here record the advanced developmental stages of midlatitude LBF from theSoğucak Carbonate Platform in NW Turkey on the brink of their extinction in the Tethys. The LBF assemblages in the uppermost part ofthe platform, exposed in Gökçetepe and Karaburun in the Thrace Basin and Black Sea shelf, are represented by the dominant occurrenceof Heterostegina d’Orbigny, 1826, Spiroclypeus Douville, 1905, Operculina d’Orbigny, 1826, Discocyclina Gümbel, 1870, Nemkovella Less,1987, Orbitoclypeus Silvestri, 1907, Asterocyclina Gümbel, 1870, and subordinate Assilina d’Orbigny, 1826, Nummulites Lamarck, 1801,and Pellatispira Boussac, 1906, characterizing shallow benthic zone (SBZ) 20. In general, the occurrence of Heterostegina, Spiroclypeus,Orbitoclypeus, and Asterocyclina in both sections suggests a deep environmental setting in the shelf. This interpretation is also supportedby the presence of abundant planktonic foraminifera in Gökçetepe and the rareness of Nummulites and Assilina in both localities. Thecooccurrence of Heterostegina reticulata and H. gracilis in Gökçetepe suggests a stratigraphic position in the lower part of SBZ 20,while in the absence of H. reticulata, Karaburun samples are referred to the upper part of the same biostratigraphic zone. Spiroclypeuscarpaticus specimens in Gökçetepe possess more primitive features than those in Karaburun as recorded in the number of operculinidchambers (parameter X), further supporting the age relations of both sections. The occurrence of D. samantai, N. daguini, A. alticostata,and O. zitteli in association with H. gracilis and S. carpaticus in the latest Priabonian is reported here for the first time. Our findingsprompt the revision of the upper stratigraphic ranges of these taxa in the Tethys.
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| APA | Yücel A, ÖZCAN E, ERBİL Ü (2020). Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. , 85 - 114. 10.3906/yer-1904-19 |
| Chicago | Yücel Ali Osman,ÖZCAN Ercan,ERBİL Ümitcan Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. (2020): 85 - 114. 10.3906/yer-1904-19 |
| MLA | Yücel Ali Osman,ÖZCAN Ercan,ERBİL Ümitcan Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. , 2020, ss.85 - 114. 10.3906/yer-1904-19 |
| AMA | Yücel A,ÖZCAN E,ERBİL Ü Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. . 2020; 85 - 114. 10.3906/yer-1904-19 |
| Vancouver | Yücel A,ÖZCAN E,ERBİL Ü Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. . 2020; 85 - 114. 10.3906/yer-1904-19 |
| IEEE | Yücel A,ÖZCAN E,ERBİL Ü "Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy." , ss.85 - 114, 2020. 10.3906/yer-1904-19 |
| ISNAD | Yücel, Ali Osman vd. "Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy". (2020), 85-114. https://doi.org/10.3906/yer-1904-19 |
| APA | Yücel A, ÖZCAN E, ERBİL Ü (2020). Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. Turkish Journal of Earth Sciences, 29(1), 85 - 114. 10.3906/yer-1904-19 |
| Chicago | Yücel Ali Osman,ÖZCAN Ercan,ERBİL Ümitcan Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. Turkish Journal of Earth Sciences 29, no.1 (2020): 85 - 114. 10.3906/yer-1904-19 |
| MLA | Yücel Ali Osman,ÖZCAN Ercan,ERBİL Ümitcan Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. Turkish Journal of Earth Sciences, vol.29, no.1, 2020, ss.85 - 114. 10.3906/yer-1904-19 |
| AMA | Yücel A,ÖZCAN E,ERBİL Ü Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. Turkish Journal of Earth Sciences. 2020; 29(1): 85 - 114. 10.3906/yer-1904-19 |
| Vancouver | Yücel A,ÖZCAN E,ERBİL Ü Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy. Turkish Journal of Earth Sciences. 2020; 29(1): 85 - 114. 10.3906/yer-1904-19 |
| IEEE | Yücel A,ÖZCAN E,ERBİL Ü "Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy." Turkish Journal of Earth Sciences, 29, ss.85 - 114, 2020. 10.3906/yer-1904-19 |
| ISNAD | Yücel, Ali Osman vd. "Latest Priabonian larger benthic foraminiferal assemblages at the demise of the Soğucak Carbonate Platform (Thrace Basin and Black Sea shelf, NW Turkey): implications for the shallow marine biostratigraphy". Turkish Journal of Earth Sciences 29/1 (2020), 85-114. https://doi.org/10.3906/yer-1904-19 |
