印度中央邦Dhar地区德干圈闭Malwa副省下Narmada山谷Kesavi圈闭层(晚白垩世/早古新世)淡水介形类组合

IF 0.5 4区地球科学 Q4 PALEONTOLOGY Journal of the Palaeontological Society of India Pub Date : 2023-09-23 DOI:10.1177/05529360231181799

Ravi Yadav, A. S. Maurya

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摘要

本文报道了在印度中邦达尔地区Kesavi地区新发现的淡水介形类新组合，包括11种(Frambocythere tumiensis anjarensis, Gomphocythere paucisulcatus, G. strangulata, Limnocythere deccanensis, Zonocypris spirula, Eucypris intervolcanus, Cypria cyrtonidion, Stenocypris圆柱形，hyperectyphos, Candona amosi, Eucypris sp.)。这个地方位于马尔瓦副省的纳尔马达山谷下游，与其他火山副省相比，印度半岛德干圈闭火山省的一个研究较少的地区。来自Kesavi的介形虫组合与来自德干火山省不同地区的介形虫组合相似，缺乏任何咸淡水或海洋元素。内底栖爬行动物Frambocythere tumiensis在组合中占主导地位，表明湖泊淡水沉积环境。

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A freshwater ostracod assemblage from the Kesavi intertrappean beds (latest Cretaceous/earliest Paleocene) of lower Narmada Valley, Malwa Sub-province of Deccan Traps, Dhar District, Madhya Pradesh, India

We here report a new freshwater ostracod assemblage comprising 11 species ( Frambocythere tumiensis anjarensis, Gomphocythere paucisulcatus, G. strangulata, Limnocythere deccanensis, Zonocypris spirula, Eucypris intervolcanus, Cypria cyrtonidion, Stenocypris cylindrical, Cypridopsis hyperectyphos, Candona amosi, Eucypris sp.) from a newly discovered intertrappean locality at Kesavi, Dhar District, Madhya Pradesh. This locality lies in the lower Narmada Valley of Malwa sub-province, a poorly studied region of the Deccan Traps volcanic province of peninsular India compared to the other volcanic sub-provinces. The ostracod assemblage from Kesavi is similar to those known from different parts of the Deccan volcanic province and lacks any brackish or marine elements. The endobenthic crawler Frambocythere tumiensis dominates the assemblage, indicating a lacustrine freshwater depositional environment.

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来源期刊

Journal of the Palaeontological Society of India PALEONTOLOGY-

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： The journal is devoted to the publication of original papers and review articles dealing with all aspects of Paleontology, Paleobotany, Stratigraphy, Geochronology, Anthropology and Pre-history.