Aalenian–Lower Bajocian Foraminiferal Fauna from the Ammonitico Rosso Series of Bakonycsernye (Hungary). Part 1: Taxonomy and Biostratigraphy

IF 0.9 4区 地球科学 Q4 PALEONTOLOGY
Gábor Zsiborás, Á. Görög
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引用次数: 3

Abstract

This paper provides the first record of isolated foraminiferal assemblages from the continuous Aalenian–lower Bajocian succession from the pelagic region of the Neotethys. The studied Tűzkövesárok section B of Bakonycsernye (Hungary) has been well dated by ammonites and consists of Ammonitico Rosso type limestones. The foraminiferal fauna extracted by glacial acetic acid yielded 49 benthic taxa (species and subspecies); protoglobigerinids also occurred. Most specimens belonged to the suborder Spirillinina, followed by the suborder Lagenina and Rotaliina; agglutinated forms were subordinate and miliolids were absent. The majority of the species have wide stratigraphic ranges; moreover, the distributions of 11 species changed based on their appearances in this section. Nevertheless, the Aalenian and Bajocian parts of the section could be distinguished based upon the stratigraphic distributions of some species.
匈牙利Bakonycsernye菊科Rosso系列的alenian -下bajoian有孔虫动物群。第一部分:分类学和生物地层学
本文首次记录了新特提斯远洋地区连续的阿勒尼亚-下巴约西亚演替中孤立的有孔虫组合。研究的匈牙利Bakonycsernye (Tűzkövesárok) B剖面为菊石型灰岩,测定了其年代。冰醋酸提取的有孔虫区系共得到49个底栖动物类群(种和亚种);原球蛋白也出现了。大多数标本属于螺旋藻亚目,其次是Lagenina亚目和Rotaliina亚目;凝集形式是次要的,没有毫脂。大多数种具有较宽的地层范围;此外,11种植物的分布也因其出现而发生了变化。然而,根据某些物种的地层分布,可以区分出该剖面的阿勒尼亚和巴约西亚部分。
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来源期刊
Journal of Foraminiferal Research
Journal of Foraminiferal Research 地学-古生物学
CiteScore
2.10
自引率
9.10%
发文量
32
审稿时长
>12 weeks
期刊介绍: JFR publishes original papers of international interest dealing with the Foraminifera and allied groups of organisms. Review articles are encouraged.
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