最大贝雷石 Megateuthis 的解剖结构和大小

IF 3 2区 地球科学 Q1 PALEONTOLOGY Swiss Journal of Palaeontology Pub Date : 2024-05-30 DOI:10.1186/s13358-024-00320-x
Christian Klug, Günter Schweigert, René Hoffmann, Dirk Fuchs, Alexander Pohle, Robert Weis, Kenneth De Baets
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引用次数: 0

摘要

在许多地区的中生代海洋沉积物中,贝类的喙非常丰富。尽管数量如此之多,但能够提供这些壳状头足类动物解剖结构和比例信息的贝类软组织标本却极为罕见,而且仅限于 Passaloteuthis 和 Hibolithes 等少数几个中等体型的属种。对于其他所有的属,我们可以通过完整的材料来推断它们的身体比例和身体以及套膜的长度。我们收集了一些侏罗纪贝类坚硬部位的比例数据,以了解它们在大体解剖方面的共同特征。然后,我们将这些知识应用到巴约卡亚属 Megateuthis 上,该属是世界上已知最大的贝类。我们的研究结果提供了简单的比率,可用于估算已知只有喙的贝类的体型。
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Anatomy and size of Megateuthis, the largest belemnite
Belemnite rostra are very abundant in Mesozoic marine deposits in many regions. Despite this abundance, soft-tissue specimens of belemnites informing about anatomy and proportions of these coleoid cephalopods are extremely rare and limited to a few moderately large genera like Passaloteuthis and Hibolithes. For all other genera, we can make inferences on their body proportions and body as well as mantle length by extrapolating from complete material. We collected data of the proportions of the hard parts of some Jurassic belemnites in order to learn about shared characteristics in their gross anatomy. This knowledge is then applied to the Bajocian genus Megateuthis, which is the largest known belemnite genus worldwide. Our results provide simple ratios that can be used to estimate belemnite body size, where only the rostrum is known.
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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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