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

IF 1.2 4区地球科学 Q3 PALEONTOLOGY

Comptes Rendus Palevol 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

Comptes Rendus Palevol 地学-古生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

17.6 weeks

期刊介绍： Comptes Rendus Palevol is a fully electronic and peer-reviewed journal, with a continuous publication stream, devoted to palaeontology, prehistory and evolutionary sciences. It publishes original research results, in French or English, in the following domains: systematic and human palaeontology, prehistory, evolutionary biology and macroevolution, and history of sciences. Thematic issues may also be published under the responsibility of a guest editor. All articles published in Comptes Rendus Palevol are compliant with the different nomenclatural codes. A copyright assignment will be signed by the authors before publication.