| 云南禄丰早侏罗世一新的原蜥脚类恐龙 |
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| 引用本文： | 关谷透.云南禄丰早侏罗世一新的原蜥脚类恐龙[J].世界地质,2010,29(1):6-15. |
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| 作者姓名： | 关谷透 |
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| 作者单位： | 吉林大学,古生物学与地层学研究中心,长春,130026;吉林大学,东北亚生物演化与环境教育部重点实验室,长春,130026 |
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| 基金项目： | 教育部与国家外专局古生物演化与环境变迁学科创新引智基地项目 |
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| 摘 要： | 云南禄丰下侏罗统下禄丰组产出一新的原蜥脚类孙氏细细坡龙(Xixiposaurus suni gen.et sp.nov.),其特征为:侧视头骨背缘向前强烈倾斜,下颌高度大于齿骨最小高度的两倍,颈椎体中第四颈椎体最长,耻骨裙宽度大于肠骨的耻骨突,股骨第四转子侧视具有V形切口。其系统位置比较进步,是禄丰发现的原蜥脚类中最进步的一种。
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| 关 键 词： | 原蜥脚类 孙氏细细坡龙 早侏罗世 下禄丰组 云南禄丰 |
A new prosauropod dinosaur from Lower Jurassic in Lufeng of Yunnan |
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| SEKIYA Toru.A new prosauropod dinosaur from Lower Jurassic in Lufeng of Yunnan[J].World Geology,2010,29(1):6-15. |
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| Authors: | SEKIYA Toru |
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| Institution: | 1. Research Center of Paleontology and Stratigraphy, Jilin University, Changchun 130026, China; 2. Key-lab of Past Life and Environment in Northeast Asia, Ministry of Education of China, Changchun 130026, China |
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| Abstract: | A new prosauropod dinosaur Xixiposaurus suni gen. et sp. nov. from the lower Lufeng Formation of lower Jurassic in Lufeng of Yunnan, China is reported. The diagnostic characters are as follows: steep slant of the skull roof in lateral view; the maximum height of the mandible larger than twice of minimum height of the dentary; the 4th cervical centrum being longest in cervicals; minimum width of the pubic apron wider than width of the pubic peduncle; the fourth trochanter having a V-shape notch in lateral view. The phylogenetic analysis shows that it is one of the most derived forms among Chinese prosauropods. |
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| Keywords: | prosauropod Xixiposaurus suni Early Jurassic Lower Lufeng Formation Lufeng of Yunnan |
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