Coscinospira prima sp. nov., a new peneroplid Foraminifera from the Paleocene of Iran and its bearing on the phylogeny of the Peneroplidae

Felix Schlagintweit, Koorosh Rashidi, Hossain Kohkan

Abstract


A new porcelaneous large-sized benthic foraminifera is described as Coscinospira prima sp. nov. from Paleocene shallow-water carbonates of different tectonic units of Iran. Is has been observed in the Selandian-Thanetian Sachun Formation (Qorban Member) of SW Iran (Zagros Zone), Selandian carbonates of Central Iran (Yazd Block), and the Selandian of the Palang Formation of Eastern Iran (Sistan Suture Zone). Coscinospira Ehrenberg was so far only known from the Holocene-Miocene (C. hemprichii Ehrenberg), and the Early Oligocene (C. elongata Sirel & Özgen-Erdem, C. sivasensis Sirel & Özgen-Erdem). Being a rather simply structured taxon, differences of species are due to classical shape and size characters. The presence of C. prima nov. sp. in the Selandian represents its oldest record and gives further information on the phylogeny and diversification of the Peneroplidae during the Early Paleogene.

Keywords


earth sciences; micropalaeontology; systematic

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References


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DOI: https://doi.org/10.3304/JMES.2020.001

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