The Most Complete Pistosauroid Skeleton from the Triassic of Yunnan, China |
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作者姓名: | ZHAO Lijun Tamaki SATO LI Chun |
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作者单位: | Department of |
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基金项目: | The Financial Special Project of Zhejiang Province,KAKENHI,国家重点基础研究发展计划(973计划),国家自然科学基金 |
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摘 要: | A new specimen discovered from the Falang Formation in northeastern Yunnan represents the most complete skeleton of Triassic pistosauroids. The new specimen is referred to Yunguisaurus Cheng et al., 2006 on the basis of the skull features, such as the presence of a separated nasal entering the external naris, a large pineal foramen located at the frontal/parietal suture and an interpterygoid vacuity with a narrow anterior extension. The new specimen differs from the type species of Yunguisaurus liae Cheng et al., 2006 in some aspects. Most of these differences can be attributed to ontogenetic variations. The new specimen is provisionally considered as Yunguisaurus cf. liae although its relatively short snout of the skull and slenderer hyoid may not be explained ontogenetically. Whether or not the new specimen represents a different taxon has to wait for a detailed study of the whole skeleton.
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关 键 词: | 古生物学 三叠纪 鳍龙类 完整骨架 中国 云南 |
收稿时间: | 2007/9/24 0:00:00 |
修稿时间: | 1/2/2008 12:00:00 AM |
The Most Complete Pistosauroid Skeleton from the Triassic of Yunnan, China |
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Authors: | ZHAO Lijun Tamaki SATO LI Chun |
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Institution: | [1]Department of Earth Sciences, Zhejiang University, Hangzhou, Zhejiang 310027, China [2]Zhejing Museum of Natural History, Hangzhou, Zhejiang 310012, China [3]Department of Natural Science, Tokyo Gakugei University, Nukui Kita-Machi 4-1-1, Koganei City, Tokyo 184-8501, Japan [4]Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China [5]Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract: | A new specimen discovered from the Falang Formation in northeastern Yunnan represents the most complete skeleton of Triassic pistosauroids.The new specimen is referred to Yunguisaurus Cheng et al.,2006 on the basis of the skull features,such as the presence of a separated nasal entering the external naris,a large pineal foramen located at the frontal/parietal suture and an interpterygoid vacuity with a narrow anterior extension.The new specimen differs from the type species of Yunguisaurus liae Cheng et al.,2006 in some aspects.Most of these differences can be attributed to ontogenetic variations.The new specimen is provisionally considered as Yunguisaurus cf.liae although its relatively short snout of the skull and slenderer hyoid may not be explained ontogenetically. Whether or not the new specimen represents a different taxon has to wait for a detailed study of the whole skeleton. |
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Keywords: | Pistosauroid Yunguisaurus complete skeleton Falang Formation late Middle Triassic Yunnan |
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