印度拉贾斯坦邦Jaisalmer组Joyan段中侏罗世介形虫

IF 0.7 4区地球科学 Q4 PALEONTOLOGY Paleontological Journal Pub Date : 2023-11-30 DOI:10.1134/s0031030123070055

Manisha Kumari

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摘要

摘要/ abstract摘要:对印度拉贾斯坦邦Jaisalmer地区Jaisalmer组Joyan段的11种介形类进行了描述和记录。4种-印度cytherella, joyanensis, Progonocythere khoslai和Trichordis minuda -被描述为新种;4种(cytherella obscura Lyubimova et Mohan)、Batella befotakaensis (Grekoff)、Mandelstamia banniensis (Neale et Singh)、Paracypris mohani Khosla、Felix et kumari)归属于已知分类群。三个species-Amicytheridea ?sp. A .， Batella sp.，和Darwinula sp.的命名法是开放的。根据动物群的分布，提出了一个介形虫生物带——joyanensis Micropneumatocythere Range Zone，并确定了该生物带的巴约西亚时代。

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

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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来源期刊

Paleontological Journal 地学-古生物学

CiteScore

1.20

自引率

33.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Paleontological Journal (Paleontologicheskii zhurnal) is the principal Russian periodical in paleontology. The journal publishes original work on the anatomy, morphology, and taxonomy of fossil organisms, as well as their distribution, ecology, and origin. It also publishes studies on the evolution of organisms, ecosystems, and the biosphere and provides invaluable information on global biostratigraphy with an emphasis on Eastern Europe and Asia.