Ostracod fauna from the Lower Cretaceous Jingchuan Formation of Ordos Basin in China and its biostratigraphic significance

IF 1.9 3区地球科学 Q1 GEOLOGY

Cretaceous Research Pub Date : 2024-12-09 DOI:10.1016/j.cretres.2024.106068

Huazheng Zhu , Yaqiong Wang , Byung-Do Choi , Yanhong Pan

引用次数: 0

Abstract

This study provides a comprehensive taxonomic analysis of ostracod species from the Jingchuan Formation in the Ordos Basin. We identified six species from four genera: Cypridea koskulensis, Mongolocypris sp., Lycopterocypris debilis, Djungarica aff. saidovi, and Alicenula spp. Our newly ostracod biostratigraphic data suggests that the Jingchuan Formation is dated to the Aptian. Moreover, our findings corroborate the hypothesis of non-marine ostracod faunal exchange in East Asia during the Early Cretaceous. This new temporal constraint also enhances our understanding of the age of Cretaceous aeolian desert sediments and red beds within the Ordos Basin.

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鄂尔多斯盆地下白垩统靖川组介形类动物群及其生物地层学意义

本文对鄂尔多斯盆地靖川组介形类进行了全面的分类分析。鉴定出4属6种，分别为塞浦路斯、蒙古塞普勒斯、lycoptercypris、Djungarica affa saidovi和Alicenula spp.新的介形类生物地层资料表明，景川组可追溯到Aptian。此外，我们的研究结果证实了早白垩纪东亚地区非海相介形虫动物群交换的假设。这一新的时间约束也增强了我们对鄂尔多斯盆地白垩纪风成沙漠沉积物和红层年龄的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cretaceous Research 地学-地质学

CiteScore

4.10

自引率

19.00%

发文量

235

审稿时长

12 weeks

期刊介绍： Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings. Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale. Research Areas include: • Regional geology • Stratigraphy and palaeontology • Palaeobiology • Palaeobiogeography • Palaeoceanography • Palaeoclimatology • Evolutionary Palaeoecology • Geochronology • Global events.