The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)

  • Dieter Korn Museum für Naturkunde, Leibniz Institut for Research on Evolution and Biodiversity, Invalidenstraße 43, 10115 Berlin, Germany
  • Vachik Hairapetian Department of Geology, Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, Iran
  • Abbas Ghaderi Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Azadi Square, 9177948974, Mashhad, Iran
  • Lucyna Leda Museum für Naturkunde, Leibniz Institut for Research on Evolution and Biodiversity, Invalidenstraße 43, 10115 Berlin, Germany
  • Martin Schobben Utrecht University, Department of Earth Sciences, Princetonlaan 8A, 3584 CB Utrecht, The Netherlands
  • Amir Akbari Department of Geology, Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, Iran
DOI: https://doi.org/10.5852/ejt.2021.776.1559
Keywords: ammonoids, Late Permian, Central Iran, biostratigraphy, morphometrics

Abstract

The Changhsingian (Late Permian) Hambast Formation of sections at Baghuk Mountain (Central Iran) has yielded diverse ammonoid assemblages composed of the genera Pseudogastrioceras, Shevyrevites, Arasella, Dzhulfites, Paratirolites, Clivotirolites gen. nov., Esfahanites gen. nov., Alibashites, Lutites gen. nov., Abichites and Stoyanowites. The succession of ammonoid species allows for a subdivision of the rock unit into biozones, which largely correlate with the occurrences in north-western Iran. Three new genera, Clivotirolites Korn & Hairapetian gen. nov., Esfahanites Korn & Hairapetian gen. nov. and Lutites Korn & Hairapetian gen. nov., as well as 19 new species are described: Shevyrevites corrugatus Korn & Hairapetian sp. nov., Arasella falcata Korn & Hairapetian sp. nov., Dzhulfites brevisellatus Korn & Hairapetian sp. nov., Paratirolites rubens Korn & Hairapetian sp. nov., Paratirolites lanceolobatus Korn & Hairapetian sp. nov., Paratirolites robustus Korn & Hairapetian sp. nov., Paratirolites baghukensis Korn & Hairapetian sp. nov., Paratirolites aduncus Korn & Hairapetian sp. nov., Clivotirolites decoratus Korn & Hairapetian gen. et sp. nov., Clivotirolites petilus Korn & Hairapetian gen. et sp. nov., Esfahanites armatus Korn & Hairapetian gen. et sp. nov., Lutites paucis Korn & Hairapetian gen. et sp. nov., Lutites lyriformis Korn & Hairapetian gen. et sp. nov., Lutites profundus Korn & Hairapetian gen. et sp. nov., Lutites alius Korn & Hairapetian gen. et sp. nov., Lutites plicatus Korn & Hairapetian gen. et sp. nov., Abichites ovalis Korn & Hairapetian sp. nov., Abichites infirmus Korn & Hairapetian sp. nov. and Stoyanowites parallelus Korn & Hairapetian sp. nov. The material described here is, together with the material from NW Iran, the most diverse assemblage known from the interval before the end-Permian mass extinction.

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Published
2021-10-27
How to Cite
Korn, D., Hairapetian, V., Ghaderi, A., Leda, L., Schobben, M., & Akbari, A. (2021). The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran). European Journal of Taxonomy, 776(1), 1-106. https://doi.org/10.5852/ejt.2021.776.1559
Issue
Vol. 776 (2021)
Section
Monograph

Copyright (c) 2021 Dieter Korn, Vachik Hairapetian, Abbas Ghaderi, Lucyna Leda, Martin Schobben, Amir Akbari

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