A combined LM and SEM study of selected palynomorphs from the palaeoflora of the Paleocene Konservat-Lagerstätte Menat (Puy-de-Dôme, France)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-09-06 DOI:10.1080/23818107.2022.2113559

H. El Atfy, K. Paudayal, D. Uhl

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引用次数: 1

Abstract

ABSTRACT In the course of a pilot study on the palynology of the late Paleocene (Thanetian) maar deposits of Menat (Puy-de-Dôme, Auvergne, France), selected palynomorphs were analysed with the single grain technique. This technique allows for a consecutive analysis of individual grains by means of light microscopy and Scanning Electron Microscopy (SEM). The current study demonstrates the occurrence of diverse lineages of palynomorphs comprising algae, spores and pollen. So far 45 different types of palynomorphs were analysed, illustrated and wherever possible assigned to families encompassing chlorococcalean and zygnematalean algae, ferns, gymnosperms and angiosperms. The latter group was the most diverse one among the analysed palynomorphs. The palynomorphs described in this study represent only a small, non-representative selection of palynomorphs that occur in the palynoflora of the maar lake from Menat, and hence more effort is expected to be done in the future. However, the data and interpretations presented here are preliminary ones, they could help to understand and refine our knowledge about the palaeoflora and palaeoenvironments of this important locality and fossil archive, as well as their development through time.

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对古新世Konservat Lagerstätte Menat（Puy-de-Dôme，法国）古植物群中选定的孢粉形态的LM和SEM联合研究

摘要在对Menat（Puy-de-Dôme，Auvergne，France）古新世晚期（Thanetian）maar矿床的孢粉学初步研究过程中，采用单颗粒技术对选定的孢粉形态进行了分析。该技术允许通过光学显微镜和扫描电子显微镜（SEM）对单个晶粒进行连续分析。目前的研究表明，存在由藻类、孢子和花粉组成的不同谱系的孢子虫。到目前为止，对45种不同类型的孢子虫形态进行了分析、说明，并尽可能将其分为绿球藻和合子藻、蕨类植物、裸子植物和被子植物等科。后一组是所分析的花粉形态中最具多样性的一组。本研究中描述的坡缕石仅代表Menat马尔湖坡缕石群中出现的一小部分非代表性坡缕石，因此预计未来将做出更多努力。然而，这里提供的数据和解释只是初步的，它们可能有助于理解和完善我们对这个重要地区和化石档案的古植物群和古环境的了解，以及它们随着时间的推移而发展。

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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.