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首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >New finds of Halitherium (Sirenia, Mammalia) from the lower Oligocene of the Rhine area, Germany
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New finds of Halitherium (Sirenia, Mammalia) from the lower Oligocene of the Rhine area, Germany

机译：来自德国莱茵河地区下渐新世的Ha石（Sirenia，Mammalia）的新发现

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摘要

The morphology, stratigraphy and systematic of new sirenian finds from the lower Oligocene of the Rhine area, Germany is established. The fossil remains are disarticulated, incomplete, and partly fragmentary. All finds are assigned to the genus Halilherium based upon extensive comparative studies. One partial skeleton from the Kaiserberg in Duisburg (Lower Rhine) belongs undoubtedly to H. schinzii, known from the Mainz Basin, due to significant similarities in diagnostically important cranial elements, Such as the supraoccipital and zygomatic process. Extremely fragmentary sirenian remains from Ratingen-Lintorf, north of Dusseldorf, also are allocated to Halitherium. Although specific identification remain,; uncertain, detailed comparative studies indicate that this specimen of Halitherium sp. might have displayed a combination of features unique among sirenians. However, the skeletal remains of Halitherium sp. that probably come from the early Oligocene "Transgressionskies" cannot be identified with certainty as belonging to a single individual. The skeletal remains of Halitherium described here show that this genus was widespread in a larger area than previously assumed. The record from Kaiserberg/Duisburg shows that H. schinzii was not only restricted to the Mainz Basin. Comparisons of the find from Ratingen-Lintorf with H. schinzii from the Mainz Basin and the Belgian Oligocene expose significant differences between both, indicating the presence of two different morphological groups.
机译：建立了来自德国莱茵河地区下渐新世的新海人岩的形态，地层和系统。化石残骸不连贯，不完整，部分为碎片。根据广泛的比较研究，所有发现均归为Halilherium属。杜伊斯堡（下莱茵河）的凯撒伯格（Kaiserberg）的一个部分骨骼无疑属于美因茨盆地（Mainz Basin）已知的H. schinzii，这是由于在诊断上重要的颅骨要素（如枕上和zy骨突）具有显着相似性。来自杜塞尔多夫北部Ratingen-Lintorf的极度碎片化的海妖遗骸也被分配给了哈利希里姆。尽管仍保留特定的标识;不确定，详细的比较研究表明，这种标本属Halitherium sp.。可能显示了警报器独特的功能组合。但是，Halitherium sp。的骨骼残留。可能来自于渐新世早期的“ Transgressionskies”无法确定地确定其属于单个个体。这里描述的Halitherium的骨骼遗骸表明，该属比以前设想的要大。 Kaiserberg / Duisburg的记录显示，H。schinzii不仅限于美因茨盆地。从拉廷根-林托夫（Ratingen-Lintorf）的发现与美因兹盆地的s.chinzii和比利时渐新世的发现之间存在明显差异，表明存在两个不同的形态学组。

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