欧洲石炭纪-二叠纪交界处茎生羊膜动物 Discosauriscus（Seymouriamorpha，Discosauriscidae）的最古老记录

IF 1.5 3区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Bulletin of Geosciences Pub Date : 2023-10-31 DOI:10.3140/bull.geosci.1882

J. Klembara, R. Werneburg, M. Mikudíková, J. Šurka, S. Štamberg

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引用次数: 0

摘要

在中欧和西欧的下二叠统沉积中发现了早期四足动物 Discosauriscus（Seymouriamorpha）的骨骼遗骸。我们在此描述了两个 Discosauriscus 标本：一个来自捷克共和国（D. pulcherrimus），另一个来自德国（D. cf. pulcherrimus）。Discosauriscus pulcherrimus的代表作是完整的头骨和部分前颅后骨架，是该物种在捷克共和国最古老的记录。为了确定 D. pulcherrimus 的诊断特征，我们使用了高分辨率 X 射线微计算机断层扫描技术。与同时代的 D. austriacus 的形态相比，这使我们能够确定该物种的所有三个典型特征。德国的 Discosauriscid 是根据颅后骨骼（Discosauriscus cf. pulcherrimus）发现的，代表了 Discosauriscus 属在上石炭统的首次记录。

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The oldest records of the stem amniote Discosauriscus (Seymouriamorpha, Discosauriscidae) from the European Carboniferous-Permian boundary

The skeletal remains of early tetrapod Discosauriscus (Seymouriamorpha) are known from the lower Permian deposits of the Central and Western Europe. We describe here two specimens of Discosauriscus : one from the Czech Republic ( D. pulcherrimus ) and the second from Germany ( D. cf. pulcherrimus ). Discosauriscus pulcherrimus is represented by the complete skull and partial anterior postcranial skeleton, and represents the oldest record of this species from the Czech Republic. To identify the diagnostic characters of D. pulcherrimus , we used the high-resolution X-ray microcomputed tomography. This enabled us to identify all three characters typical for this species, in contrast to the morphology of the contemporaneous D. austriacus . The discosauriscid from Germany, known on the basis of the postcranial skeleton ( Discosauriscus cf. pulcherrimus ), represents the first record of the genus Discosauriscus from the Upper Carboniferous. •

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来源期刊

Bulletin of Geosciences 地学-地球科学综合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

>12 weeks

期刊介绍： The Bulletin of Geosciences is an international journal publishing original research papers, review articles, and short contributions concerning palaeoenvironmental geology, including palaeontology, stratigraphy, sedimentology, palaeogeography, palaeoecology, palaeoclimatology, geochemistry, mineralogy, geophysics, and related fields. All papers are subject to international peer review, and acceptance is based on quality alone.