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首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >How diverse is the temnospondyl fauna in the Lower Triassic of southern Germany
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How diverse is the temnospondyl fauna in the Lower Triassic of southern Germany

机译：在德国南部的下三叠纪，触角类动物区系的多样性

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摘要

Among the few fossiliferous Lower Triassic deposits in Europe, the Lower to Middle Buntsandstein of the German southwest has yielded a range of interesting finds. A review of the pub-lished and new material gives the following results: (1) The oldest identified remain is a mandible of a small stereospondyl from the Bernburg Formation (Induan); (2) A new palate from the early Olene-kian (Badischer Bausandstein) stems from a basal capitosaur similar to Wetlugasaurus; (3) In the late Olenekian (Hardegsen Formation), two well-defined temnospondyl genera are present: the basal capitosauroids Meyerosuchus fuerstenbergianus and Odenwaldia heidelbergensis. Large remains formerly referred to Mastodonsaurus either pertain to a different family or are undiagnostic, pushing the first occurrence of mastodonsaurids into the Anisian. These finds highlight the presence of large aquatic predators by early Triassic time, revealing an increasing diversity of aquatic predators from the Induan to the Anisian. The documented faunal changes involved patterns of immigration and extinction/emigration rather than endemic evolution within the basin. In contrast to the northern parts of the basin, the genera Trematosaurus, Parotosuchus, and Sclerothorax are absent in the southern part, where Meyerosuchus and Odenwaldia existed.
机译：在欧洲为数不多的化石沉积的下三叠纪矿床中，德国西南部的下至中Buntsandstein矿床发现了一系列有趣的发现。对已发表和新发表的材料进行的审查得出以下结果：（1）鉴定出的最古老的遗骸是来自伯恩伯格组（印度）的小立体石的下颌骨; （2）早期的欧莱尼基安人（Badischer Bausandstein）的新味蕾起源于类似于湿甲龙的基底头龙。 （3）在晚奥列尼克期（Hardegsen组），存在两个明确定义的季诺桥基属：基头类拟蟹类Meyerosuchus fuerstenbergianus和Odenwaldia heidelbergensis。以前被称为Mastodonsaurus的大型遗骸属于不同的家庭或无法诊断，因此将首次出现的Masodonsaurids推入Anisian。这些发现突显了三叠纪早期大型水生捕食者的存在，揭示了从印度支那到安尼西亚的水生捕食者的多样性在增加。有记录的动物群变化涉及移民和灭绝/迁徙的模式，而不是流域内的地方性演化。与盆地北部相反，在南部存在Meyerosuchus和Odenwaldia的地区不存在Trematosaurus，Parotosuchus和Sclerothorax属。

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