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Middle Jurassic Ostracodes from Joyan Member, Jaisalmer Formation, Jaisalmer, Rajasthan, India

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Abstract—

Eleven ostracode species from Joyan Member of Jaisalmer Formation, Jaisalmer District, Rajasthan, India are described and/or recorded. Four species—Cytherella indica, Micropneumatocythere joyanensis, Progonocythere khoslai, and Trichordis minuta—are described as new; and 4 species—Cytherella obscura Lyubimova et Mohan, Batella befotakaensis (Grekoff), Mandelstamia banniensis (Neale et Singh), Paracypris mohani Khosla, Felix et Kumari—are assigned to already known taxa. Three species—Amicytheridea? sp. A, Batella sp., and Darwinula sp.—are left in open nomenclature. Based on distribution of the fauna, one ostracode biozone, Micropneumatocythere joyanensis Range Zone, has been proposed for the beds of Joyan Member and a Bajocian age is assigned for the zone.

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ACKNOWLEDGMENTS

Grateful thanks are due to the authorities of Central Instrumentation Facility, Pondicherry University, Puducherry for providing the SEM facility; and to Mr. Ganesh Prasad Muduli, PhD. Scholar in the Department of Earth Sciences, Pondicherry University, Puducherry for helping the author in preparation of location map. The author expresses her profound gratitude to Dr. Ekaterina Tesakova, Doctor of Science, Associate Professor (Faculty of Geology, Lomonosov Moscow State University) for critical reviewing and making several useful suggestions to improve the manuscript.

Funding

The report is based on the fieldwork carried out under the DST sponsored Research project no. SR/FTP/ES-04/2003 sanctioned under Fast Track Scheme for Young Scientist. The author is highly thankful to the authorities, Department of Science and Technology, Government of India, New Delhi, for the grant of financial assistance to take up the study.

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  1. Department of Earth Sciences, Pondicherry University, 605014, Puducherry, India

    Manisha Kumari

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Manisha Kumari Middle Jurassic Ostracodes from Joyan Member, Jaisalmer Formation, Jaisalmer, Rajasthan, India. Paleontol. J. 57, 775–783 (2023). https://doi.org/10.1134/S0031030123070055

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