A new Late Triassic palynological assemblage from western Gondwana (Carrizal Formation, Marayes Basin, Argentina)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2021-08-18 DOI:10.5852/cr-palevol2021v20a33

S. N. Césari, J. Drovandi, C. Colombi, Gustavo A. Correa, L. Spalletti

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引用次数: 3

Abstract

The Carrizal Formation, exposed in the Marayes-El Carrizal Basin (western Argentina), has been the focus of palaeobotanical studies since the late 1800s. The recent finding of well-preserved palynological assemblages provides the first detailed studies about its palynofloras. In this paper, the 63 taxa identified in the unit are illustrated and discussed, as well as their stratigraphic distribution in equivalent palynological assemblages of Argentina. Some spore species are revised: Uvaesporites hammenii (Herbst) Césari, comb. nov., Retusotriletes wielandii (Jain) Césari, comb. nov. and Lundbladispora stellae (Herbst) Césari, comb. nov. The recognition of Cadargasporites baculatus de Jersey & Paten emend. Reiser & Williams, Craterisporites rotundus de Jersey, Enzonalasporites vigens Leschik, Leptolepidites argenteaeformis (Bolkhovitina) Morbey, Protodiploxypinus americus Dunay & Fisher and Rugulatisporites permixtus Playford, among others, appears to be useful for local and intercontinental correlations. A Carnian age is proposed for the palynofloras.

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阿根廷Marayes盆地Gondwana西部(Carrizal组)晚三叠世新孢粉组合

自19世纪末以来，暴露在阿根廷西部Marayes-El Carrizal盆地的Carrizal组一直是古植物学研究的焦点。最近发现的保存完好的孢粉组合首次提供了对其孢粉区系的详细研究。本文对该单元所鉴定的63个分类群及其在阿根廷等效孢粉组合中的地层分布进行了说明和讨论。修订了一些孢子种类:Uvaesporites hammenii (Herbst) csamsari, comb。11月，Retusotriletes wielandii(耆那教)csamsari，梳子。11月和星形棱叶孢(草本)csamsari，梳子。11 .泽西Cadargasporites baculatus de Jersey的认可和Paten修订。Reiser & Williams, Craterisporites rotundus de Jersey, Enzonalasporites vigens Leschik， -Leptolepidites argentteaeformis (Bolkhovitina) Morbey, Protodiploxypinus americus Dunay & Fisher和Rugulatisporites permixtus Playford等，似乎对本地和洲际相关性有用。孢粉植物的卡尼期被提出。

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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.