| 新疆玛纳斯古近纪—新的鲤科鱼类 |
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| 引用本文： | 苏德造. 新疆玛纳斯古近纪—新的鲤科鱼类[J]. 古脊椎动物学报, 2011, 49(2): 141-154 |
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| 作者姓名： | 苏德造 |
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| 作者单位： | 中国科学院古脊椎动物与古人类研究所,北京,100044 |
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| 基金项目： | 国家自然科学基金委员会创新研究群体科学基金 |
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| 摘 要： | 记述了新疆玛纳斯古近纪安集海河组发现的鲤科(Cyprinidae)一新属、种——刘氏天山鱼(Tianshanicus liui gen.et sp.nov.)。新属具有臀鳍分叉鳍条多于7根、体长形稍侧扁、口端位、下咽齿近锥形而齿尖前后略侧扁、背鳍和臀鳍均无硬棘、背鳍起点略在腹鳍起点之后以及尾鳍深分叉等特征,表明它应属于雅罗鱼亚科(Leuciscinae sensu Cavender & Coburn,1992)。然而,它又具有额骨前宽后窄、顶骨长方形、膜质蝶耳骨很大、齿骨冠状突较低、鳃盖骨近长方形等特征而有别于本亚科中其他属。值得注意的是,这些特征却见诸于现生的胭脂鱼类Myxocyprinus中,这将对研究雅罗鱼类的起源很有意义。根据鱼化石和哺乳化石的证据,认为含鱼层的时代为晚始新世。
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| 关 键 词： | 新疆准噶尔盆地 晚始新世 鲤科 雅罗鱼亚科 |
A NEW CYPRINID FISH FROM PALEOGENE OF NORTHERN XINJIANG, CHINA |
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| SU De-Zao. A NEW CYPRINID FISH FROM PALEOGENE OF NORTHERN XINJIANG, CHINA[J]. Vertebrata Palasiatica, 2011, 49(2): 141-154 |
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| Authors: | SU De-Zao |
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| Affiliation: | SU De-Zao (Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences Beijing 100044) |
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| Abstract: | The fossil cypriniform fishes described here were collected from the Anjihaihe Formation (Paleogene)in the Manas County in northern Xinjiang,and referred to a new genus and species, Tianshanicus liui,of the family Cyprinidae.This new genus shows typical characters of the subfamily Leuciscinae,and is of great interest for studying the origin of the subfamily Leuciscinae. According to the nature of the fish-fauna and mammal fossils,the age of the fish-bearing beds is considered as late Eocene. |
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| Keywords: | Junggar Basin,Xinjiang late Eocene Cyprinidae,Leuciscinae |
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