Foraminifera-walled Schaubcylindrichnus coronus Frey and Howard, 1981, from the Middle Eocene, Kachchh, Western India

IF 0.8 4区地球科学 Q4 PALEONTOLOGY

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2019-04-03 DOI:10.1080/10420940.2018.1532897

S. S. Gurav, K. Kulkarni

引用次数: 0

Abstract

Abstract Bioclast lined tubes of Schaubcylindrichnus coronus are not much reported around the world. As of now only two reports are available. Interestingly in both these reports and in the current find, tests of foraminifers are used as tube building material. Current report of Schaubcylindrichnus is from the subtidal deposits of the Naredi Formation (Ypresian) of Kachchh Basin, Western India. As the host rock here abounds in the tests of larger benthic foraminifera, concentration of same is noticed within the tubes. The natural selection of lighter and larger calcitic grains of tests over the heavier mineral grains is the main reason for presence of the tests in tube building; moreover, presence of inner smooth wall of tube also indicates organisms’ preference for comfort within their burrow.

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弗雷和霍华德，1981，来自中始新世，印度西部Kachchh

摘要:冠状邵氏杆菌生物碎屑内衬管的研究国内外报道较少。到目前为止，只有两份报告可用。有趣的是，在这些报告和目前的发现中，有孔虫的测试被用作管状建筑材料。目前报道的schaubichnus来自印度西部Kachchh盆地Naredi组(Ypresian)的潮下沉积。由于寄主岩石在大型底栖有孔虫的测试中大量存在，因此在管中也注意到同样的浓度。较轻、较大的钙质颗粒对较重的矿物颗粒的自然选择是筒体中存在试验的主要原因;此外，管道内壁光滑的存在也表明生物对洞穴内舒适的偏好。

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

Ichnos-An International Journal for Plant and Animal Traces PALEONTOLOGY-

CiteScore

2.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： The foremost aim of Ichnos is to promote excellence in ichnologic research. Primary emphases center upon the ethologic and ecologic significance of tracemaking organisms; organism-substrate interrelationships; and the role of biogenic processes in environmental reconstruction, sediment dynamics, sequence or event stratigraphy, biogeochemistry, and sedimentary diagenesis. Each contribution rests upon a firm taxonomic foundation, although papers dealing solely with systematics and nomenclature may have less priority than those dealing with conceptual and interpretive aspects of ichnology. Contributions from biologists and geologists are equally welcome. The format for Ichnos is designed to accommodate several types of manuscripts, including Research Articles (comprehensive articles dealing with original, fundamental research in ichnology), and Short Communications (short, succinct papers treating certain aspects of the history of ichnology, book reviews, news and notes, or invited comments dealing with current or contentious issues). The large page size and two-column format lend flexibility to the design of tables and illustrations. Thorough but timely reviews and rapid publication of manuscripts are integral parts of the process.

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