The palynology of the Ordóñez Formation (Pennsylvanian) in the Chacoparaná Basin, northern Argentina

Q2 Agricultural and Biological Sciences

Acta Palaeobotanica Pub Date : 2018-06-01 DOI:10.2478/ACPA-2018-0002

P. Gutiérrez, M. L. Balarino

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引用次数: 8

Abstract

Abstract A detailed palynological analysis of the Chacoparaná Basin is presented. Thirty-one samples were recovered from boreholes YCF.CO1, YCF.CO2 and YCF.CO3, corresponding to the lower part of the Ordóñez Formation, at the Santiago Temple locality (Córdoba Province, Argentina). Three new species are described: Calamospora fissurata sp. nov., Retusotriletes archangelskyi sp. nov. and Horriditriletes chacoparanensis sp. nov.; Leiotriletes malanzanensis nov. nom., Endosporites menendezi nov. nom., emend. are proposed to replace L. tenuis Azcuy and E. parvus Menéndez; and the following species are proposed as new combinations: Brevitriletes coalescens (Menéndez & Azcuy) nov. comb., Brevitriletes papillatus (Menéndez & Azcuy) nov. comb., B. sparsus (Menéndez & Azcuy) nov. comb., B. delicatus (Menéndez) nov. comb. and Indotriradites malanzanensis (Azcuy) nov. comb. Two different associations were identified and are compared with the known biozones from the same basin and other biostratigraphical schemes for basins from central western Argentina. The palynological assemblage can be referred, in part, to the Potonieisporites–Lundbladispora Biozone (Chacoparaná Basin) and the Raistrickia densa–Convolutispora muriornata Biozone (central western basins of Argentina, latest Serpukhovian–Bashkirian).

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阿根廷北部Chacoparaná盆地Ordóñez组（宾夕法尼亚纪）的孢粉学

摘要对查科帕拉纳盆地进行了详细的孢粉学分析。从圣地亚哥神庙（阿根廷科尔多瓦省）Ordóñez组下部的YCF.CO1、YCF.CO2和YCF.CO3钻孔中回收了31个样本。描述了三个新种：Calamospora fissorata sp.nov.、Retusotriletes archangelskyi sp.nov..和Horriditrietes chacoparanensis sp.novs。；Malanzannensis Leiotrietes nov.nom。，内孢子虫menendezi nov.nom。，修正被提议取代L.tenuis Azcuy和E.parvus Menéndez；以下物种被认为是新的组合：Brepickletes coalizens（Menéndez&Azcuy）nov.comb。，乳头状短玻璃藻（Menéndez&Azcuy）nov.comb。，B.sparsus（Menéndez&Azcuy）nov.comb。，B.delicatus（Menéndez）nov.梳。和马兰扎嫩Indotriradites malanzanensis（Azcuy）nov.comb。确定了两个不同的组合，并与同一盆地的已知生物带和阿根廷中西部盆地的其他生物地层学方案进行了比较。该孢粉组合可部分参考Potonieisporites–Lundbladispora生物带（Chacoparaná盆地）和Raistrickia densa–Convolutispora muriornata生物带（阿根廷中西部盆地，最新的谢尔普霍夫阶–巴什基尔阶）。

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来源期刊

Acta Palaeobotanica Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： Acta Palaeobotanica is an international journal edited in English by the W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków, since 1960, which publishes original palaeobotanical, palynological, palaeoecological and palaeophytogeographical papers, monographs, review and discussion articles and book reviews. It is the only journal in the Central and Eastern Europe publishing papers from all fields of palaeobotany. The journal is published regularly in one volume per year, with two numbers.