دورية أكاديمية
Silicoflagellates and other siliceous micro- and nannofossils from Rupelian diatomites, southeastern Poland
| العنوان: | Silicoflagellates and other siliceous micro- and nannofossils from Rupelian diatomites, southeastern Poland |
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| المؤلفون: | Irena Kaczmarska, James M. Ehrman |
| المصدر: | Plant and Fungal Systematics, Vol 69, Iss 1, Pp 85-98 (2024) |
| بيانات النشر: | W. Szafer Institute of Botany, Polish Academy of Sciences, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Botany |
| مصطلحات موضوعية: | central paratethys, clathropyxidella, dictyochophyceans, early oligocene, macrora, rotosphaeridians, siliceous nanoscales, Botany, QK1-989 |
| الوصف: | The Eocene-Oligocene Transition is one of the major stages of the Cenozoic reshaping of the world oceans with associated changes in climate, of ocean coastlines and circulation patterns. This altogether created challenging environments for fossilization and preservation of native biota. Consequently, well preserved Oligocene fossils are infrequent worldwide and just as rare in the Central Paratethys. The well-preserved Rupelian (Early Oligocene) diatomites from the Skole Nappe, the external unit of the Outer Carpathians in southeastern Poland were deposited in the Central Paratethys. In some samples, in addition to diatoms, sediments also contain a great diversity of other silicified micro- and nannofossils. Here we report our findings of silicoflagellates (fifteen taxa from five genera), two rotosphaeridians, and several morphotypes of fossil scales, some of uncertain taxonomic affinity. Among silicoflagellates, the most common are species from genera Corbisema ( C. triacantha , C. hastata , and C. apiculata ) and Dictyocha ( D. clinata and D. fibula ). We also recovered scales of rotosphaeridians ( Pinaciophora and possibly Rabdiophrys ) and remains of organisms of uncertain affinity ( Clathropyxidella and Macrora ) often reported together with silicoflagellates. All of these taxa are the first reports for the Central Paratethys. Silicoflagellate species composition is consistent with the datums derived from other fossils. Silicoflagellates, marine diatoms and archaeomonads suggest a neritic depositional environment. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2544-7459 2657-5000 |
| Relation: | https://pfsyst.botany.pl/Silicoflagellates-and-other-siliceous-micro-and-nannofossils-from-Rupelian-diatomites,189132,0,2.html; https://doaj.org/toc/2544-7459; https://doaj.org/toc/2657-5000 |
| DOI: | 10.35535/pfsyst-2024-0009 |
| URL الوصول: | https://doaj.org/article/b1c7e0d376114b958e913d6718e08634 |
| رقم الأكسشن: | edsdoj.b1c7e0d376114b958e913d6718e08634 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25447459 26575000 |
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| DOI: | 10.35535/pfsyst-2024-0009 |