'Arm brains' (axial nerves) of Jurassic coleoids and the evolution of coleoid neuroanatomy.

IF 3 2区 地球科学 Q1 PALEONTOLOGY Swiss Journal of Palaeontology Pub Date : 2023-01-01 Epub Date: 2023-09-27 DOI:10.1186/s13358-023-00285-3
Christian Klug, René Hoffmann, Helmut Tischlinger, Dirk Fuchs, Alexander Pohle, Alison Rowe, Isabelle Rouget, Isabelle Kruta
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Abstract

Although patchy, the fossil record of coleoids bears a wealth of information on their soft part anatomy. Here, we describe remains of the axial nerve cord from both decabrachian (Acanthoteuthis, Belemnotheutis, Chondroteuthis) and octobrachian (Plesioteuthis, Proteroctopus, Vampyronassa) coleoids from the Jurassic. We discuss some hypotheses reflecting on possible evolutionary drivers behind the neuroanatomical differentiation of the coleoid arm crown. We also propose some hypotheses on potential links between habitat depth, mode of life and the evolution of the Coleoidea.

Supplementary information: The online version contains supplementary material available at 10.1186/s13358-023-00285-3.

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侏罗纪类结肠的“臂脑”(轴神经)和类结肠神经解剖学的进化。
尽管不完整,但类结肠的化石记录包含了大量关于其软部解剖的信息。在这里,我们描述了侏罗纪十臂类(Acanthoteuthis、Belemnotheutis、Chondroteuthis)和八臂类(Plesioteuthis、Proteroctopus、Vamprobanassa)鞘类动物的轴神经索遗迹。我们讨论了一些假说,这些假说反映了鞘膜样臂冠神经解剖学分化背后可能的进化驱动因素。我们还提出了一些关于栖息地深度、生活方式和鞘翅目进化之间潜在联系的假设。补充信息:在线版本包含补充材料,可访问10.1186/s13358-023-00285-3。
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来源期刊
Swiss Journal of Palaeontology
Swiss Journal of Palaeontology Earth and Planetary Sciences-Paleontology
CiteScore
4.30
自引率
16.70%
发文量
17
审稿时长
4 weeks
期刊介绍: The Swiss Journal of Palaeontology publishes original research and review articles of interest to the international community in the fields of palaeontology, taxonomy and systematics, while recognising at the same time the importance of documenting high-quality palaeontological data in a regional context. Palaeobiology in combination with alpha taxonomy is a core topic of the journal. Submitted papers should have an appeal as wide as possible, directed towards an international readership. Contributions should not have been simultaneously submitted elsewhere, and the overlap of content between related articles should be minimal. Duplications of text and the use of previously published illustrations without adequate citation are unacceptable. If a manuscript has two or more authors, both or all have to sign to confirm they all were involved in the work and have agreed to its submission. The preferred manuscript language is UK English, but consistently used US English is also acceptable. We encourage the publication of proceedings of international meetings as well as special thematic issues. Short contributions and book reviews are also accepted. An international editorial team as well as guest editors guarantee that the thematic issues as well as all articles in regular issues are peer-reviewed and meet the highest standards.
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