Abstract
Eifelian ammonoids are described for the first time from the Central Kyzylkum Desert (Uzbekistan, Navoiy Region, Aristantau Mountains). The ammonoid assemblage includes the typical Eifelian genera Fidelites, Subanarcestes (a new species S. aristanensis Nikolaeva sp. nov. is described), and Cabrieroceras, found in association with brachiopods, conodonts, and dacryoconarids. The ammonoid assemblage is similar to that from the Choteč beds of Barrandien and their equivalents in the Urals, Salair, Germany, and Morocco (Subanarcestes macrocephalus Zone), suggesting a connection between the Eifelian Kyzylkum Basin, which was part of the Turkestan Paleoocean, and European, North African, Siberian, and Uralian basins. The ammonoids studied are not associated with black shale and apparently existed in normal marine environments.
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Original Russian Text © S.V. Nikolaeva, I.A. Kim, F.A. Salimova, F.S. Karimova, V.A. Konovalova, 2017, published in Paleontologicheskii Zhurnal, 2017, No. 3, pp. 14–25.
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Nikolaeva, S.V., Kim, I.A., Salimova, F.A. et al. The discovery of Eifelian ammonoids in the Central Kyzylkum Desert (Aristantau Mountains, Uzbekistan). Paleontol. J. 51, 233–246 (2017). https://doi.org/10.1134/S003103011703008X
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DOI: https://doi.org/10.1134/S003103011703008X