Nubeculina Cushman 1924 (milolida)的试验壁:从整个和切片标本中更新其粘合瓷质壁结构

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-01-01 DOI:10.47894/mpal.68.6.02

L. Capotondi, M. Kaminski, N. Mancin

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引用次数: 1

摘要

有越来越多的新的有孔虫，它们的壁类型是由分泌的高镁方解石晶体结合在一起的，这与传统的千孔虫的定义不一致。在这项研究中，我们使用配备能量色散x射线光谱(EDS)的环境扫描电子显微镜(ESEM)分析了克罗地亚海岸(亚得里亚海)收集的现代海洋沉积物中的整个和切片有孔虫标本。所研究的标本类似于百万虫属Nubeculina Cushman 1924和Falsonubeculina Amao和Kaminski 2019，但显示出先前在类似百万虫中未观察到的测试形态学特征和粘连-陶瓷壁结构。它们的壁结构更像在原始凝集有孔虫(如Lagenammina)中观察到的，而不是在真正的千粒虫中观察到的。讨论了关于核仁属群的新的分类学推论。

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The test wall of ?Nubeculina Cushman 1924 (Miliolida): updates on its agglutinated-porcelaneous wall structure from entire and sectioned specimens

There is a growing number of new foraminifera with agglutinated wall types held together by secreted crystallites of high-magnesium calcite that do not fit within the traditional definition of the Miliolida. In this study, we analyzed entire and sectioned foraminiferal specimens frommodern marine sediments collected off the Croatian coast (Adriatic Sea) using an Environmental Scanning Electron Microscope (ESEM) equipped with Energy-Dispersive x-ray-Spectroscopy (EDS). The investigated specimens resemble the miliolid genera Nubeculina Cushman 1924 and Falsonubeculina Amao and Kaminski 2019, but display characteristics of testmorphology and an agglutinated-porcelaneous wall structure that have not been previously observed in similar miliolids. Their wall structure is more like that observed in primitive agglutinated foraminifera such as Lagenammina rather than in true miliolids. New taxonomical inferences regarding the nubeculinid group of genera are discussed.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.