Although sauropodomorph dinosaurs have been known for a long time from the Late Triassic of central Europe, sauropodomorph diversity and faunal composition has remained controversial until today. Here we review sauropodomorph material from the Canton Schaffhausen, Switzerland. The material comes from three different but geographically close localities and represents at least three different taxa. Apart from the common genus Plateosaurus, the material includes remains of two different large, robustly built sauropodomorphs. One of these is described as a new taxon, Schleitheimia schutzi n. gen. et sp., on the basis of an unusual ilium and associated axial and appendicular material. Schleitheimia represents a derived basal sauropodiform and possibly the immediate outgroup to Sauropoda, and thus is the most derived sauropodomorph known from the Late Triassic of Europe. These results thus highlight the diversity of sauropodomorphs in the Late Triassic of central Europe and further indicate widespread sauropodomorph survival across the Triassic-Jurassic boundary.

中文翻译：

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来自瑞士沙夫豪森州三叠纪晚期的人猿属恐龙和其他人猿形态的材料

尽管蜥脚类恐龙在中欧三叠纪晚期就已广为人知，但直到今天，蜥脚类恐龙的多样性和动物区系组成仍然引起争议。在这里，我们回顾了瑞士沙夫豪森州的sauropodomorph材料。该材料来自三个不同但在地理位置上接近的地区，并代表至少三个不同的分类单元。除了常见的板龙属外，该材料还包含两种不同的坚固健壮的拟人龙的遗骸。其中之一被描述为新的分类单元Schleitheimia schutzi n。gen。等等，基于不常见的i骨以及相关的轴向和附件材料。schleitheimia代表衍生的基底人骨节状动物，可能是鳞茎状纲的直接外群，因此是欧洲三叠纪晚期已知的最衍生的蜥脚类目。因此，这些结果突出了中欧三叠纪晚期蜥脚类目动物的多样性，并进一步表明蜥脚类目动物生存在三叠纪-侏罗纪边界。