The Most Complete Pistosauroid Skeleton from the Triassic of Yunnan, China
The Most Complete Pistosauroid Skeleton from the Triassic of Yunnan, China
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DOI：
10.1111/j.1755-6724.2008.tb00578.x
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发表时间：
2008-04
期刊：
影响因子：
--
通讯作者：
Zhao Lijun;Tamaki Sato;Li Chun
中科院分区：
文献类型：
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作者：
Zhao Lijun;Tamaki Sato;Li Chun
摘要：云南东北部法朗组新发现的一具化石是三叠纪最完整的盾龙类化石。新标本被称为云贵龙属（Yunguisaurus Cheng et al.），2006年根据颅骨特征，如存在分离的鼻进入外鼻孔，位于额/顶骨缝处的大松果体孔和翼间空区，前部延伸狭窄。新标本不同于Liae Cheng等的云贵龙模式种，2006年，在某些方面。这些差异大部分可归因于个体发育变异。新标本暂被认为是云贵龙属（Yunguisaurus cf.）liae虽然其相对较短的鼻子的头骨和细长舌骨可能无法解释个体发育。新的标本是否代表不同的分类单元，必须等待对整个骨架的详细研究。
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.