藻类和类似笔石的问题共存:波德托利亚志留纪晚期(乌克兰)的一个案例研究

IF 1.1 4区 地球科学 Q3 GEOLOGY
S. Skompski, Anna Kozłowska, Wojciech Kozłowski, P. Łuczyński
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引用次数: 0

摘要

:Skompski,S.,Kozłowska,A.,Kozáowski,W.和Łuczyński,P.2023。藻类和类似笔石的问题共存:波德托利亚志留纪晚期(乌克兰)的一个案例研究。波兰地质学报,73(2),115–133。Warszawa。这一贡献记录了大量保存完好的铊类非钙化藻类和表生藻类的组合,该表生藻类已被公认为波德利亚(乌克兰西部)上志留纪(勒德洛、戈尔斯蒂安-勒德福德阶)的假定笔石。沉积物代表了大陆架的浅潮缘带。建立了一个新的属和种,Voronocladus dryganti,属于Dacycladales Pascher,1931年。大多数代表藻类铊的标本都长满了有问题的表生笔石,称为Podoliagractus algeoides gen.et sp.nov。这种现象被解释为假定的笔石在藻类上的表生生活模式,并在这里与最近已知的藻类与其他生物共存进行了比较。良好的保存状态,以及所研究的大环藻和表生问题的丰富性表明,所研究的泥岩层可以被视为“Konservat Lagerstätte”sensu Seilacher(1970)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coexistence of algae and a graptolite-like problematicum: a case study from the late Silurian of Podolia (Ukraine)
: Skompski, S., Kozłowska, A., Kozłowski, W. and Łuczyński, P. 2023. Coexistence of algae and a graptolite-like problematicum: a case study from the late Silurian of Podolia (Ukraine). Acta Geologica Polonica , 73 (2), 115–133. Warszawa. This contribution presents the record of an abundant assemblage of well-preserved, thallophytic noncalcified algae and of an epibiotic form that has been recognised as a putative graptolite from the upper Silurian (Ludlow, Gorstian–Ludfordian) of Podolia (western part of Ukraine). The sediments represent a shallow peritidal zone of the shelf. A new genus and species, Voronocladus dryganti , belonging to the Dasycladales Pascher, 1931, is established. Most of the specimens representing the algal thallus are overgrown by problematical epibiotic graptolites, described as Podoliagraptus algaeoides gen. et sp. nov. This phenomenon is explained as an epi - phytic mode of life of the putative graptolite on algae, and is herein compared to recently known coexistences of algae with other organisms. The excellent state of preservation, and the abundance of studied Dasycladales algae and epibiotic problematics indicate that the investigated mudstone layer can be treated as a ‘Konservat Lagerstätte’ sensu Seilacher (1970).
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来源期刊
Acta Geologica Polonica
Acta Geologica Polonica 地学-地质学
CiteScore
1.70
自引率
18.20%
发文量
0
审稿时长
>12 weeks
期刊介绍: Acta Geologica Polonica publishes original and review papers on all aspects of basic geology, with particular focus on sedimentology, stratigraphy, palaeontology, regional geology, structural geology, and regional petrography. All papers are published in English.
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