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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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Volume 34, issue 1
J. Micropalaeontol., 34, 71-91, 2015
https://doi.org/10.1144/jmpaleo2014-009
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 34, 71-91, 2015
https://doi.org/10.1144/jmpaleo2014-009
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Jan 2015

01 Jan 2015

Deep-water ostracods from the Middle Anisian (Reifling Formation) of the Northern Calcareous Alps (Austria)

Wolfgang Mette1, Avi Honigstein2, and Sylvie Crasquin3 Wolfgang Mette et al.
  • 1Institut für Geologie, Universität Innsbruck, Innrain 52, 6020 Innsbruck, Austria
  • 2Ministry of National Infrastructures Oil and Gas section, 234 Jaffa Rd, POB 36148 Jerusalem 91360, Israel
  • 3CR2P (UMR 7207 – CNRS, UPMC, MNHN), University Paris 6, T.45-56, E.5, case 104, 4 place Jussieu, 75252 Paris cedex 05, France

Keywords: Ostracods, Reifling Formation, Anisian, Northern Calcareous Alps, Austria

Abstract. A diverse silicified ostracod aassemblage from Middle Anisian, Middle Triassic, intra-shelf basin deposits (Reifling Formation) is described. It comprises 32 species, of which 5 are new species (Bairdia biforis n. sp., B. schneebergiana n. sp., Mirabairdia praepsychrosphaerica n. sp., M. plurispinosa n. sp., Bairdiacypris aequisymmetrica n. sp.). The assemblage consists of both neritic species and deep-water taxa which have been considered as representatives of the ‘Thuringian Ecotype’ or the ‘Palaeopsychrospheric Fauna’. Lithofacies, palaeogeographical setting and taxonomic composition are suggestive of a deep neritic to upper bathyal depositional environment. ‘Archaic’ faunal elements are relatively rare and include the genera Spinomicrocheilinella and Processobairdia, which were formerly known only from the Palaeozoic and are now recorded for the first time from the Mesozoic.

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