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Eptingiacea and Saturnaliacea (Radiolaria) from the middle Carnian of Turkey and some late Ladinian to early Norian samples from Oman and Alaska

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Abstract

This article is a taxonomic study of the radiolarian species of the superfamilies Eptingiacea and Saturnaliacea occurring in the middle Carnian fauna from the Köseyahya section, near the town of Elbistan, southeastern Turkey. This fauna is characteristic of the Tetraporobrachia haeckeli Radiolarian Zone as defined in Austria and later found also in Turkey and Oman. It comes from an 8 m thick succession of clayey/cherty limestones from the lower part of the section. In addition, a few species from the late Ladinian and Carnian from Oman and the early Norian from Alaska have also been included in this study, in order to improve some generic diagnoses and to show the diversity and evolutionary trends of some genera. 32 radiolarian species of which 22 are new are described and illustrated, and assigned to 16 genera of which three are new (Capnuchospyris, Veleptingium, and Triassolaguncula). The diagnoses of some species, genera, subfamilies and families have been revised, and the family Eptingiidae has been raised to the rank of superfamily.

Kurzfassung

Diese Arbeit ist eine taxonomische Studie über die Arten der Superfamilien Eptingiacea und Saturnaliacea der Mittel-Karnium Radiolarienfauna aus Köseyahya, einer Lokalität östlich der Stadt Elbistan in der südöstlichen Türkei. Die Fauna entspricht der Tetraporobrachia haeckeli Zone, welche in Österreich definiert und später auch in der Türkei und im Oman gefunden wurde und stammt aus dem unteren Teil einer 8 Meter mächtigen Abfolge von mergelig/kieseligen Kalken. Daneben wurden auch einige Arten aus dem Ladin und dem Karnium aus dem Oman und aus dem unteren Norium aus Alaska in diese Studie aufgenommen, um einige generische Bestimmungen zu verbessern und die Diversität und die Entwicklungsrichtungen von einigen Genera aufzuzeigen. Es werden 32 Arten (davon 22 neue Arten) und 3 neue Gattungen (Capnuchospyris, Veleptingium und Triassolaguncula) beschrieben. Die Beschreibungen einiger Arten, Gattungen, Unterfamilien und Familien wurden überarbeitet und die Familie Eptingiidae in den Rang einer Superfamilie angehoben.

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Acknowledgments

All the photographs used in this study were taken with the CamScan electronic microscope in the Hochschule der Künste Bern, Switzerland. We are very much obliged to Dr Nadim C. Scherrer for his kindness and permission to use this microscope any time we needed it. The senior co-author thanks also his wife, Ruth Dumitrica, for her assistance with the preparation of some figures and for translation of the abstract. The authors are very much obliged to the two reviewers: Spela Gorican, Ljubljana, and an anonymous reviewer who read the text very carefully and made fruitful suggestions to improve it.

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  1. Dennigkofenweg 33, 3073, Gümligen, Switzerland

    Paulian Dumitrica

  2. Department of Geological Engineering, Hacettepe University, 06532 Beytepe, Ankara, Turkey

    Ugur Kagan Tekin

  3. Department of Geological Research, General Directorate of Mineral Research and Exploration, 06800 Canaya, Ankara, Turkey

    Yavuz Bedi

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  1. Paulian Dumitrica
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Dumitrica, P., Tekin, U.K. & Bedi, Y. Eptingiacea and Saturnaliacea (Radiolaria) from the middle Carnian of Turkey and some late Ladinian to early Norian samples from Oman and Alaska. Paläontol Z 84, 259–292 (2010). https://doi.org/10.1007/s12542-009-0043-3

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