爱德华Emplastron edwardsi (Van Straelen, 1928)的系统修正与古生物学。11 .(甲壳纲，十足纲，虾虾科)埋在石灰华内，产自法国ssamzanne

IF 1.3 4区地球科学 Q3 PALEONTOLOGY

Paleontological Research Pub Date : 2021-10-01 DOI:10.2517/2021PR007

R. O'Flynn, Denis Audo, T. Kawai

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引用次数: 2

摘要

摘要小龙虾在化石记录中很罕见，因此详细调查每一次发生的情况很重要。唯一已知的来自法国的小龙虾化石，Astacus edwardsi Van Straelen，1928年，是从一个复制品中发现的，该复制品是在正模中倒入巴黎石膏制成的（随后被销毁），正模是从塞尚Thanetian的钙华洞穴中提取的外部模具。提供了对分类名称A.edwardsi的评估；A.根据ICZN的裁决，爱德华被视为有效。它具有其他所有无酸属的非典型特征，因此建立了Emplastron gen.nov。雇佣爱德华一代和科姆。nov.生活在温暖的气候中，有平静的水域、丰富的食物来源和充足的碳酸钙供应：如此之多，以至于它是唯一被发现的标本，这令人惊讶。尽管附近有明显的北美区系和花的亲缘关系，爱德华氏小龙虾与欧洲小龙虾的亲缘关系比与美国小龙虾的更为密切。

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Systematic Revision and Palaeobiology of Emplastron edwardsi (Van Straelen, 1928) gen. et comb. nov. (Crustacea, Decapoda, Astacidae) Entombed within Travertine, from Sézanne, France

Abstract. Crayfish are rare in the fossil record and therefore it is important to investigate each occurrence in detail. The only known fossil crayfish from France, Astacus edwardsi Van Straelen, 1928, is known from a replica made by pouring plaster of Paris inside the holotype (subsequently destroyed), an external mould extracted from a travertine cavity from the Thanetian of Sézanne. An evaluation of the taxonomic name, A. edwardsi, is provided; A. edwardsi is considered valid in accordance with ICZN rulings. It possesses atypical features for all other astacid genera, thus Emplastron gen. nov. is erected. Emplastron edwardsi gen. et comb. nov. inhabited a warm climate with calm waters, abundant food sources, and an ample supply of calcium carbonate: so much so that it is surprising that it is the only recovered specimen. Despite apparent North American faunal and floral affinities in the vicinity, E. edwardsi is more closely related to European crayfishes than it is to American ones.

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来源期刊

Paleontological Research PALEONTOLOGY-

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Paleonotological Research (PR) is a quarterly, peer-reviewed international journal, which focuses on original contributions primarily in the area of paleontology but also covering a wide range of allied sciences. It has been published since 1997 as a successor to the former journal Transactions and Proceedings of the Palaeontological Society of Japan. The emphasis of contributions will include global and local perspectives, and contents can cover all ages (Precambrian to the Quaternary, including the present time).