悟空翼龙科（爬行纲，翼龙目）前颌嵴的变异及关于翼龙头骨结构的评论
Premaxillary crest variation within the Wukongopteridae (Reptilia, Pterosauria) and comments on cranial structures in pterosaurs.
作者信息
Cheng Xin, Jiang Shunxing, Wang Xiaolin, Kellner Alexander W A
机构信息
Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, P.O. Box 643, 100044, Beijing, China.
Laboratory of Systematics and Taphonomy of Fossil Vertebrates, Department of Geology and Paleontology, Museu Nacional/Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, São Cristóvão, 20940-040 Rio de Janeiro, RJ, Brazil.
出版信息
An Acad Bras Cienc. 2017 Jan-Mar;89(1):119-130. doi: 10.1590/0001-3765201720160742. Epub 2017 Feb 9.
Cranial crests show considerable variation within the Pterosauria, a group of flying reptiles that developed powered flight. This includes the Wukongopteridae, a clade of non-pterodactyloids, where the presence or absence of such head structures, allied with variation in the pelvic canal, have been regarded as evidence for sexual dimorphism. Here we discuss the cranial crest variation within wukongopterids and briefly report on a new specimen (IVPP V 17957). We also show that there is no significant variation in the anatomy of the pelvis of crested and crestless specimens. We further revisit the discussion regarding the function of cranial structures in pterosaurs and argue that they cannot be dismissed a priori as a valuable tool for species recognition.
头嵴在翼龙目（一类进化出动力飞行的飞行爬行动物）中表现出相当大的变异。这包括悟空翼龙科，一类非翼手龙类，此类头嵴结构的有无，以及骨盆管的变异，被视为两性异形的证据。在此，我们讨论悟空翼龙科中的头嵴变异，并简要报告一个新标本（IVPP V 17957）。我们还表明，有头嵴和无头嵴标本的骨盆解剖结构没有显著差异。我们进一步重新审视关于翼龙头部结构功能的讨论，并认为不能先验地将它们排除在作为物种识别的有价值工具之外。
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