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首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >Hyolitha and problematica from the Rhine Slate Mountains (Lower-Middle Devonian), and their palaeobiological significance
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Hyolitha and problematica from the Rhine Slate Mountains (Lower-Middle Devonian), and their palaeobiological significance

机译:莱茵石板山(下中泥盆统)的Hyolitha和Problematica及其古生物学意义

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摘要

Pugiunculus fasciculatus and P rimulosus are herein transferred to "Hyolithes"? and P unguiformis is reassigned to "Orthotheca"?. The first species is noteworthy due to longitudinal ribs on the dorsal internal mould, and the second merits attention owing to the Runzelschicht on its surface. The third possesses unusual dorsal apical curvature as well as longitudinal ribs created by raised knobs, with Runzelschicht-like lines oblique to the aperture superimposed on them. Coleoprion is one of several tubular problematic forms of unknown affinity; it commonly occurs as incomplete specimens in normal marine facies in the Devonian of Central Europe.
机译:此处将短梗和缘毛转移到“扁石”上吗? P unguiformis被重新分配给“ Orthotheca”?第一个是值得注意的,这是由于背面内部模具上有纵向肋骨,第二个是由于表面上的Runzelschicht而值得关注。第三种具有不寻常的背顶曲率,以及由凸起的旋钮产生的纵向肋骨,类似Runzelschicht的线条倾斜于其上重叠的孔口。 Coleoprion是未知亲和力的几种管状问题形式之一;它通常在中欧泥盆纪的正常海相中以不完整的标本出现。

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