法国巴黎盆地下白垩统 Choffatella singularis 的分类学修订和新属 Magniezjanninius 的描述

IF 0.7 Q4 PALEONTOLOGY
Felix Schlagintweit
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引用次数: 0

摘要

Choffatella singularis 描述于巴黎盆地的豪特里维世(Hauterivian),其依据是大量的孤立标本和定向薄片,因此可以进行非常详细的描述。虽然在原始描述中提到了齿槽壁结构,但该新种被归入了缺乏这一特征的 Choffatella Schlumberger,而显示出细密而规则的 Choffatella 亚表皮网络。而这一特征指的是 Pseudocyclammina Yabe 和 Hanzawa,但其孔口类型不同。为了将 Ch. singularis 纳入目前的凝集底栖有孔虫分类法及其基本标准,建立了新的 Magniezjanninius 属,包括新的组合 M. singularis(Magniez-Jannin)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Taxonomic revision of Choffatella singularis Magniez-Jannin, 1989, from the Lower Cretaceous of the Paris Basin, France and description of the new genus Magniezjanninius

Choffatella singularis was described from the Hauterivian of the Paris Basin based on abundant isolated specimens and oriented thin-sections enabling a very detailed description. Although an alveolar wall-structure was mentioned in the original description, the new species was assigned to Choffatella Schlumberger that lacks this feature, instead displaying a fine and regular choffatellid subepidermal network. This feature instead would refer to Pseudocyclammina Yabe and Hanzawa that however has a different apertural type. To accommodate Ch. singularis into the current classification of agglutinated benthic foraminifera and its basic criteria, the new genus Magniezjanninius is established including the new combination M. singularis (Magniez-Jannin).

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来源期刊
CiteScore
2.50
自引率
0.00%
发文量
17
期刊介绍: La Revue de micropaléontologie publie 4 fois par an des articles de intérêt international, consacrés à tous les aspects de la micropaléontologie. Les textes, en anglais ou en français, sont des articles originaux, des résultats de recherche, des synthèses et mises au point, des comptes rendus de réunions scientifiques et des analyses de ouvrages. La revue se veut résolument ouverte à tous les aspects de la micropaléontologie en accueillant des travaux traitant de la systématique des microfossiles (et de leurs équivalents actuels), des bactéries aux microrestes de vertébrés, et de toutes leurs applications en sciences biologiques et géologiques.
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