A new hybodontiform shark (Strophodus Agassiz, 1838) from the Upper Jurassic of Switzerland.

IF 3 2区地球科学 Q1 PALEONTOLOGY

Swiss Journal of Palaeontology Pub Date : 2025-01-01 Epub Date: 2025-07-09 DOI:10.1186/s13358-025-00376-3

Jorge D Carrillo-Briceño, Iwan Stössel, René Kindlimann, Christian Klug

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引用次数: 0

Abstract

The hybodontiform shark-like Strophodus was a large durophagous predator with highly specialized crushing-type dentition that mainly inhabited Mesozoic marine environments for more than 130 million years, with a fossil record spanning from the Middle Triassic to the Lower Cretaceous. Strophodus was a geographically widespread taxon with 13 species reported from Africa, Asia, Europe, India and South America. Here, we describe a new species of Strophodus, which we name Strophodus timoluebkei sp. nov. based on three teeth from the same individual in semi-articulated position. The holotype was collected in the Prealpine Sulzfluh Limestone Formation (Middle Oxfordian to Late Tithonian), Central Switzerland. Strophodus timoluebkei sp. nov. currently is the only vertebrate species reported from this geological unit, and its presence suggests that this durophagous shark likely played an important role as predator of the invertebrate fauna in this ancient Tethyan tropical coastal ecosystem. The new discovery sheds additional light onto the hybodontiform paleodiversity during the Upper Jurassic.

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瑞士上侏罗统一新齿状鲨鱼（Strophodus Agassiz, 1838）。

剑齿虎是一种大型硬食性食肉动物，具有高度特化的压碎型牙列，主要生活在中生代海洋环境中，历史超过1.3亿年，化石记录跨越中三叠世至下白垩纪。食龙属是一个分布广泛的分类群，据报道在非洲、亚洲、欧洲、印度和南美洲有13种。在这里，我们描述了一个新种，我们将其命名为Strophodus timoluebkei sp. 11 .基于同一个体半关节位置的三颗牙齿。全型采集于瑞士中部的前高山期Sulzfluh灰岩组（中牛津世至晚铁东世）。timoluebkei sp. 11 .是目前在该地质单元中发现的唯一脊椎动物，它的存在表明这种硬食性鲨鱼可能在古代特提斯热带沿海生态系统中作为无脊椎动物群的捕食者发挥了重要作用。这一新发现进一步揭示了上侏罗纪时期下颌齿形的古多样性。

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来源期刊

Swiss Journal of Palaeontology Earth and Planetary Sciences-Paleontology

CiteScore

4.30

自引率

16.70%

发文量

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.