The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran) Author Korn, Dieter 286CA4F3-7EBC-4AEF-A66A-B2508D001367 Museum für Naturkunde, Leibniz Institut for Research on Evolution and Biodiversity, Invalidenstrasse 43, 10115 Berlin, Germany. dieter.korn@mfn.berlin Author Hairapetian, Vachik 1AB10F8F-4576-481B-9270-5DCD25110DBB Department of Geology, Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, Iran. vhairap@gmail.com Author Ghaderi, Abbas 925F2B42-7326-4461-B2A6-83CB83ECCC63 Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Azadi Square, 9177948974, Mashhad, Iran. aghaderi@um.ac.ir Author Leda, Lucyna 81481AFA-C8EE-4E90-A954-FD0E7987621E Museum für Naturkunde, Leibniz Institut for Research on Evolution and Biodiversity, Invalidenstrasse 43, 10115 Berlin, Germany. lucyna.skorpion3@wp.pl Author Schobben, Martin 44C2A45A-B16C-434F-8F22-FC9C0FCA2551 Utrecht University, Department of Earth Sciences, Princetonlaan 8 A, 3584 CB Utrecht, The Netherlands. & Department of Geology, Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, Iran. schobbenmartin@gmail.com Author Akbari, Amir 3C9DB6F9-2034-418F-876C-49359D07D29F Department of Geology, Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, Iran amakbari80@yahoo.com text European Journal of Taxonomy 2021 2021-10-27 776 1 106 journal article 3782 10.5852/ejt.2021.776.1559 453c885c-f427-4a38-ab97-dc14b686e126 2118-9773 5604715 226B6C59-8620-4A29-9BEF-359BE67A1A2C Genus Paratirolites Stoyanow, 1910 Type species Paratirolites Kittli Stoyanow, 1910 , by original designation. Included species Paratirolites birunii Korn & Ghaderi, 2016 ; Paratirolites coronatus Korn & Ghaderi, 2016 ; Paratirolites kittli Stoyanow, 1910 ; Paratirolites multiconus Korn & Ghaderi in Korn et al. , 2016 ; Paratirolites quadratus Korn & Ghaderi in Korn et al. , 2016 ; Paratirolites serus Korn & Ghaderi in Korn et al. , 2016 ; Paratirolites trapezoidalis Shevyrev, 1965 ; Paratirolites vediensis Shevyrev, 1965 ; Stephanites (?) Waageni Stoyanow, 1910 ; Azerbaijan (synonym of Paratirolites kittli Stoyanow, 1910 ); 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. Diagnosis Representatives of the family Dzhulfitidae with moderately large to very large conch; maximum adult diameters between 60 and 250 mm . Adult stage with trapezoidal whorl profile. Subadult stage with large conical ventrolateral nodes; adult stage with significantly weakening sculpture. Suture line with deep external lobe; depths of external lobe and adventive lobe are nearly identical. Remarks For a discussion of the genus, see Korn & Ghaderi in Korn et al. (2016) .