ASGP (2023), vol. 93: 411–422

BRACHIOPODS FROM THE LOWER RED FORMATION (LOWER OLIGOCENE) OF THE ISFAHAN PROVINCE, CENTRAL IRAN

Maria Aleksandra BITNER (1*), Ali BAHRAMI (2), Mehdi YAZDI (2) & Kamil ZÁGORŠEK (3)

1) Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, 00-818 Warszawa, Poland; e-mail: bitner@twarda.pan.pl
2) Department of Geology, Faculty of Sciences, University of Isfahan, 81746 Isfahan, Iran; e-mails: a.bahrami@sci.ui.ac.ir, meh.yazdi@gmail.com
3) Department of Geography, Technical University of Liberec, Studentská 2, CZ-461, 17 Liberec, Czech Republic; e-mail:kamil.zagorsek@gmail.com
*) Corresponding author

Bitner, M. A., Bahrami, A., Yazdi, M. & Zágoršek, K., 2023. Brachiopods from the Lower Red Formation (Lower Oligocene) of the Isfahan Province, Central Iran. Annales Societatis Geologorum Poloniae, 93: 411–422.

Abstract: The study presents the first record of Early Oligocene brachiopods from the Lower Red Formation of the Isfahan Province, Central Iran. The assemblage comprises six brachiopod taxa, belonging to five genera, Novocrania Lee and Brunton, Thecidellina Thomson, Argyrotheca Dall, Joania Álvarez, Brunton and Long, and Platidia Costa. Two species are described as new, Thecidellina persica sp. nov. and Argyrotheca ramshehensis sp. nov. The discovery of Thecidellina in Iran is the first confirmed occurrence of this genus in Oligocene deposits, filling the gap between known Eocene and Miocene occurrences. At the species level, the brachiopods investigated here show no affinity to those from the Lower Miocene Qom Formation.

Manuscript received 19 March 2023, accepted 7 August 2023