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1 October 2022 Systematic Paleontology of Bartonian Larger Benthic Foraminifera from Shahrekord Region in High Zagros, Iran
Khadijeh Changaei, Seyed Ahmad Babazadeh, Mehran Arian, Borzou Asgari Pirbaloti
Author Affiliations +
Abstract

The Jahrum Formation is characterized by abundant benthic Foraminifera in carbonate beds, partly marly and dolomitic limestones in the Kuh-e-Soukhteh (Shahrekord region). This formation covers a huge stretch of the Zagros Zone which is a part of the central Tethyian realm during the Paleogene time. Bio-stratigraphic analysis of the larger benthic Foraminifera distinguishes one assemblage zone assigned to the late middle Eocene (Bartonian). This new biostratigraphic range is represented by the index fossil Rhabdorites malatyaensis (Sirel) and is correlated with calcareous rocks in the Shiraz area (south Iran), Dhofar section (Oman), and Socotra Island (Yemen). The Jahrum Formation is dominated by rich miliolids-agglutinated Foraminifera with rare small rotaliids and without Nummulites Lamarck and Alveolina d'Orbigny indicating that the formation was deposited in a shallow water environment (nearshore lagoonal zone) with low energy.

© by the Palaeontological Society of Japan
Khadijeh Changaei, Seyed Ahmad Babazadeh, Mehran Arian, and Borzou Asgari Pirbaloti "Systematic Paleontology of Bartonian Larger Benthic Foraminifera from Shahrekord Region in High Zagros, Iran," Paleontological Research 27(1), 73-84, (1 October 2022). https://doi.org/10.2517/PR200055
Received: 26 December 2020; Accepted: 27 July 2021; Published: 1 October 2022
KEYWORDS
Bartonian
Iran
Jahrum Formation
Larger benthic Foraminifera
Shahrekord
systematics
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