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On the Preservation of the Beak in Confuciusornis (Aves: Pygostylia)

文献类型：期刊论文

作者Falk, Amanda2; O'Connor, Jingmai1,3; Wang, Min1,3; Zhou, Zhonghe1,3
刊名DIVERSITY-BASEL
出版日期2019-11-01
卷号11期号:11页码:9
关键词beak rhamphotheca Confuciusornithidae Confuciusornithiformes preservation hidden diversity Jehol biota
DOI10.3390/d11110212
通讯作者O'Connor, Jingmai(jingmai@ivpp.ac.cn) ; Zhou, Zhonghe(zhouzhonghe@ivpp.ac.cn)
英文摘要The Confuciusornithiformes represent the most stem-ward avian occurrence of an edentulous rostrum. Although a keratinous beak is widely considered to have covered the rostrum in confuciusornithiforms, this feature is almost never preserved, having been previously reported only in the holotype of Confuciusornis dui and the holotype of Eoconfuciusornis zhengi. This strongly contrasts with the widespread preservation of the keratinous sheaths that cover the manual and pedal ungual phalanges. Here, we report on a third occurrence of a preserved rhamphotheca in a specimen of Confuciusornis sanctus. We illuminated the preserved traces using laser-stimulated fluorescence. Similarly to E. zhengi, the rhamphotheca has been preserved only as a two-dimensional trace, whereas ungual sheaths are preserved in three dimensions. In contrast to the traces preserved in C. dui, the rhamphotheca in the discussed specimen of C. sanctus is straight rather than upturned. This hints towards hidden morphological diversity within the thousands of Confuciusornis specimens, in which species may be further differentiated by soft tissue features or behaviors, much like many living birds, that cannot be detected in fossils, even with exceptional preservation.
WOS关键词BIRD ; SANCTUS ; INFORMATION ; MORPHOLOGY ; EVOLUTION ; SPECIMEN ; ANATOMY ; CHINA ; BILL
资助项目National Natural Science Foundation of China[41688103]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000500005400016
出版者MDPI
资助机构National Natural Science Foundation of China
源URL[http://119.78.100.205/handle/311034/16789]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者O'Connor, Jingmai; Zhou, Zhonghe
作者单位1.CAS Ctr Excellence Life & Paleoenvironm, Beijing 10010, Peoples R China
2.Ctr Coll Danville, Biol Dept, 600 W Walnut St, Danville, KY 40422 USA
3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Falk, Amanda,O'Connor, Jingmai,Wang, Min,et al. On the Preservation of the Beak in Confuciusornis (Aves: Pygostylia)[J]. DIVERSITY-BASEL,2019,11(11):9.
APA Falk, Amanda,O'Connor, Jingmai,Wang, Min,&Zhou, Zhonghe.(2019).On the Preservation of the Beak in Confuciusornis (Aves: Pygostylia).DIVERSITY-BASEL,11(11),9.
MLA Falk, Amanda,et al."On the Preservation of the Beak in Confuciusornis (Aves: Pygostylia)".DIVERSITY-BASEL 11.11(2019):9.

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来源：古脊椎动物与古人类研究所

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