First late Silurian (Ludfordian–Pridoli?) brachiopods from Iran

Ludlow to Pridoli? rhynchonellate brachiopods, previously unknown in Iran, are described from the upper Dahaneh-Kalut Formation, outcropping in the Derenjal Mountains on the northern margin of the East-Central Iranian platform. The brachiopod faunas comprise eight species assigned to eight genera in...

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Bibliographic Details
Published inPalaeoworld Vol. 34; no. 4; p. 100894
Main Authors Popov, Leonid E., Ghobadi Pour, Mansoureh, Modzalevskaya, Tatyana L., Hairapetian, Vachik
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2025
Subjects
biofacies
Iran
Ludlow
Rhynchonellate brachiopods
Silurian
taxonomy
Ludlow
Silurian
biofacies
taxonomy
Iran
Rhynchonellate brachiopods
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Summary:Ludlow to Pridoli? rhynchonellate brachiopods, previously unknown in Iran, are described from the upper Dahaneh-Kalut Formation, outcropping in the Derenjal Mountains on the northern margin of the East-Central Iranian platform. The brachiopod faunas comprise eight species assigned to eight genera including Ancillotoechia bicostata n. sp., Isorthis (Ovalella) equimulticostellata n. sp., Protathyris golshanensis n. sp., and Macropleura kuhestanensis n. sp. The Ludfordian age of these taxa is supported by the occurrences of the conodonts Ozarkodina crispa (Walliser) and Ozarkodina sp. cf. O. snajdri (Walliser). Three low richness and high abundance brachiopod communities are recognised, all of which inhabited a shallow-water carbonate shelf within the Benthic Assemblages 2 and 3. Despite the prevalence of cosmopolitan genera, the Iranian Ludfordian–Pridoli? brachiopod faunas show little interaction with geographically closest contemporaneous faunas of the Australian sector of Gondwana and South China plate.
ISSN:1871-174X
DOI:10.1016/j.palwor.2024.11.002