Additional contributions to the knowledge of the Taquaral Member, Irati Formation (Lower Permian, Paraná Basin): Taphonomy and paleoenvironmental implications

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2017-12-24 DOI:10.4267/2042/64291
A. Chahud
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引用次数: 5

Abstract

The silty shale facies of the Taquaral Member (Irati Formation), which is one of the Permian units in the Brazilian Parana Basin, is discussed here based on the taphonomy relevant to the paleoenvironmental interpretation. The fossils are crustaceans (Clarkecaris and other indeterminate forms), isolated teeth, scales and bones of Actinopterygii, "Palaeonisciformes ", which are the most common vertebrate remains, and also frequent scales of Coelacanthiformes. The scales, teeth and disarticulated bones are found together in accumulations, which may be interpreted as coprolites. Many of the fossil crustaceans display characteristics of ecdysis.
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对paran盆地下二叠统Irati组Taquaral段知识的额外贡献:地层学和古环境意义
根据与古环境解释有关的地层岩性,讨论了巴西巴拉那盆地二叠纪单元之一的Taquaral段(Irati组)的粉砂质页岩相。这些化石是甲壳类动物(Clarkecaris和其他不确定的形式),放线鸟纲的孤立牙齿、鳞片和骨头,是最常见的脊椎动物遗骸,也是腔棘鱼目的常见鳞片。鳞片、牙齿和关节缺失的骨头聚集在一起,可以被解释为粪化石。许多甲壳类动物化石显示出蜕皮的特征。
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来源期刊
Accounts of Chemical Research
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.
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