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首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >Fish otoliths from the Early Oligocene of Mangyshlak, Kazakhstan
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Fish otoliths from the Early Oligocene of Mangyshlak, Kazakhstan

机译:哈萨克斯坦曼格斯拉克早期渐新世的鱼耳石

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摘要

Fish otoliths are described from the Uzunbas Formation (Rupelian) of the Karagie depression, Mangyshlak Peninsula, Western Kazakhstan. A total of 9 species are described, 3 as newly established (Pterothrissus caspiensis sp. nov., Palaeogadus schwarzhansi sp. nov., Palimphyes stolyarovi sp. nov.) and 2 in open nomenclature. This is the first record of Rupelian otoliths from Kazakhstan and the Turan Basin, which formed the eastward extension of the Paratethys during Late Paleogene. Expectedly, the fauna from Uzunbas shows considerable resemblance with the Rupelian fish faunas of the Caucasus, the Crimea, and Western Europe. Gadiform otoliths dominate the otolith association (Raniceps tuberculosus, Palaeogadus schwarzhansi sp. nov., Palaeogadus germanus, Palaeogadus rarus). The faunal composition indicates a marine, temperate palaeoenvironment within the neritic zone.
机译:鱼耳石描述自哈萨克斯坦西部曼格斯赫拉克半岛卡拉奇凹陷的乌祖巴斯组(Rupelian)。总共描述了9种,其中3种是新近建立的(Pterothrissus caspiensis sp。nov。,Paloeogadus schwarzhansi sp。nov。,Palimphyes stolyarovi sp.nov。),另2种处于开放命名法。这是来自哈萨克斯坦和图兰盆地的Rupelian耳石的第一个记录,形成了古近纪晚期Paratethys的东延。可以预料,来自乌祖巴斯(Uzunbas)的动物群与高加索,克里米亚和西欧的Rupelian鱼类群非常相似。 Gadiform耳石占主导地位的耳石协会(Raniceps tuberculosus,Palaeogadus schwarzhansi sp。nov。,Palaeogadus germanus,Palaeogadus rarus)。动物区系组成表明在晚生带内有海洋性,温带古环境。

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