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首页> 外文期刊>Annales >THE PRESENTLY BEST-PRESERVED SPECIMEN OF LOWER DEVONIAN DALMANΓ∏D TRILOBΓTE OF THE PRAGUE BASIN (CZECH REPUBUC), WITH ARTICULATED HYPOSTOME
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THE PRESENTLY BEST-PRESERVED SPECIMEN OF LOWER DEVONIAN DALMANΓ∏D TRILOBΓTE OF THE PRAGUE BASIN (CZECH REPUBUC), WITH ARTICULATED HYPOSTOME

机译：迄今为止最好的保存在普拉亚盆地（捷克共和国）的下泥盆纪达曼-达里奇小体标本

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摘要

— A rare, complete specimen of Zlichovaspis {Zlichovaspi?) rugosa rugosa (Hawle & Corda, 1847) with in situ articulated hypostome is described from the locality Tetín Hill near Beroun (Bohemia). This unique sample is stored in the Musée d'Histoire Naturelle de Lille (France). Dalmanitid trilobites with articulated hypostome represent very rare findings worldwide, although these trilobites show the conterminant type of the hypostome. Although these trilobites are a common component of Devonian communities inhabiting Prague Basin, only eight specimens with hypostome attached to the doublure and/or hypostome preserved very close to the doublure have been described; they all belong to the common species Zlichovaspis (Zlichovaspis) rugosa rugosa and Odontochile cristata Hawle & Corda, 1847, respectively. The newly described specimen represents most probably a carcass. It is the best preserved specimen of this species with hypostome in situ and provides the opportunity to reconstruct the 3D orientation of the hypostome and its relation to the cephalon for the first time. The possible causes of the apparent paucity of specimens with hypostome in situ in Devonian dalmanitid trilobites are discussed.
机译：—从Beroun（波希米亚）附近的TetínHill地区描述了一种罕见的完整的Zlichovaspis（Zlichovaspi？）rugosa rugosa标本（Hawle和Corda，1847年），带有就地铰接的假体。这个独特的样本存储在法国里尔历史博物馆（Muséed'Histoire Naturelle de Lille）。具关节状假体的达曼尼特三叶虫代表了全世界非常罕见的发现，尽管这些三叶虫显示了假体的决定性类型。尽管这些三叶虫是居住在布拉格盆地的泥盆纪群落的常见组成部分，但仅描述了8个标本附着于可疑之处和/或伪造得非常接近可疑之处的标本。它们都分别属于常见的物种Zlichovaspis（Zlichovaspis）rugosa rugosa和Odontochile cristata Hawle＆Corda，1847年。新描述的标本很可能代表屠体。它是该物种保存得最好的标本，具有原位下垂，并首次提供了重建下垂的3D方向及其与头颅关系的机会。讨论了泥盆纪达尔曼底特三叶虫原位有伪造的标本明显缺乏的可能原因。

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