New anatomical information of the wukongopterid Kunpengopterus sinensis Wang et al., 2010 based on a new specimen.

New anatomical information of the wukongopterid Kunpengopterus sinensis Wang et al., 2010 based on a new specimen.
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Wang et al., 2010 基于新标本的悟空鸟科 Kunpengopterus sinensis Wang 等人的新解剖信息

DOI:
10.7717/peerj.4102
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发表时间:
2017
期刊:
影响因子:
2.7
通讯作者:
Kellner AWA
Kellner AWA
中科院分区:
生物学3区
文献类型:
--
作者:
Cheng X;Jiang S;Wang X;Kellner AWA

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乌孔翼龙科是中晚侏罗世燕辽生物群中数量最多的飞行爬行动物,属于翼龙类的一个非翼手龙科分支。到目前为止,已经描述了三个属的五个种和另外两个未命名的标本。在这里,我们报告一个新的材料,IVPP V 23674,可以被称为乌孔翼龙,Kunpengopterus sinensis由于几个功能,如一个短的nasoantorbital窗,背侧上升的posterodoral边缘的坐骨,和非常短的第一足趾骨的第V趾相对于跖骨IV。IVPP V 23674提供了乌孔翼龙类上颚的第一个视图,它与所有其他翼龙的不同之处在于有一个非常大的腭后窗和侧向压缩的choebellar,这表明翼龙上颚的进化比以前认为的要复杂。籽骨在手指甲的背侧存在,并首次报道在一个wukongopterid建议这些翼龙的树栖生活方式。
The Wukongopteridae compose a non-pterodactyloid clade of pterosaurs that are the most abundant flying reptiles in the deposits of the Middle-Late Jurassic Yanliao Biota. Until now, five species of three genera and two additional unnamed specimens have been described. Here we report on a new material, IVPP V 23674, that can be referred to the wukongopterid Kunpengopterus sinensis due to several features such as a comparably short nasoantorbital fenestra, the dorsally rising posterodorsal margin of the ischium, and the very short first pedal phalanx of digit V relative to metatarsal IV. IVPP V 23674 provides the first view of a wukongopterid palate, which differs from all other pterosaurs by having a very large postpalatine fenestra and laterally compressed choanae, indicating that the evolution of the pterosaur palate was more complex than previously thought. Sesamoid bones at the dorsal side of manual unguals are present and are reported for the first time in a wukongopterid suggesting an arboreal life-style for these pterosaurs.
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