New Information on the Keratinous Beak ofConfuciusornis(Aves: Pygostylia) From Two New Specimens

doi:10.3389/feart.2020.00367

IVPP-IR

	New Information on the Keratinous Beak ofConfuciusornis(Aves: Pygostylia) From Two New Specimens
	Zheng, Xiaoting 1,2; O'Connor, Jingmai3,4 ; Wang, Yan 1,2; Wang, Xiaoli 1,2; Xuwei, Yin 2; Zhang, Xiaomei 2; Zhou, Zhonghe3,4
	2020-09-16
发表期刊	FRONTIERS IN EARTH SCIENCE
卷号	8 期号:0 页码:14
摘要	The keratinous beak is inferred to have evolved multiple times in the Archosauria and in Aves. Unfortunately, this feature rarely preserves in the fossil record. Here we examine a collection of 603 specimens belonging to the Confuciusornithiformes, a clade of edentulous basal avians, only two of which preserve visible traces of the rhamphotheca. Preservation is very different between the two specimens, offering no clues as to the taphonomic conditions that are conducive to preservation of this feature. These differences suggest that preservation of the rhamphotheca is not limited to a very narrow set of specific chemical conditions. We suggest the more common preservation of feathers over rhamphotheca is due to the higher melanin content in the former. The well-preserved traces in one specimen described here suggests that the rhamphotheca covering the upper and lower jaws each may consist of a pair of right and left elements, thus differing from the condition in neornithines in which the premaxillary nail and mandibular nail covering the rostral half of the upper and lower jaws respectively each form a single unit.
关键词	rhamphotheca keratin beak soft tissue Jehol avifauna Early Cretaceous avian evolution Confuciusornithiformes
DOI	10.3389/feart.2020.00367
关键词[WOS]	CONFUCIUSORNIS-SANCTUS ; AVES ORNITHOTHORACES ; COLOR PATTERNS ; BIRD ; EVOLUTION ; BILL ; SKULL
收录类别	SCI
语种	英语
资助项目	national natural science foundation[41688103] ; National Natural Science Foundation[41402017] ; National Natural Science Foundation[41372014] ; Taishan Scholars Program of Shandong Province[Ts20190954]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000576288600001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/18117
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zheng, Xiaoting; O'Connor, Jingmai
作者单位	1.Linyi Univ, Inst Geol & Paleontol, Linyi, Shandong, Peoples R China 2.Tianyu Nat Hist Museum Shandong, Pingyi, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xiaoting,O'Connor, Jingmai,Wang, Yan,et al. New Information on the Keratinous Beak ofConfuciusornis(Aves: Pygostylia) From Two New Specimens[J]. FRONTIERS IN EARTH SCIENCE,2020,8(0):14.
APA	Zheng, Xiaoting.,O'Connor, Jingmai.,Wang, Yan.,Wang, Xiaoli.,Xuwei, Yin.,...&Zhou, Zhonghe.(2020).New Information on the Keratinous Beak ofConfuciusornis(Aves: Pygostylia) From Two New Specimens.FRONTIERS IN EARTH SCIENCE,8(0),14.
MLA	Zheng, Xiaoting,et al."New Information on the Keratinous Beak ofConfuciusornis(Aves: Pygostylia) From Two New Specimens".FRONTIERS IN EARTH SCIENCE 8.0(2020):14.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
feart-08-00367.pdf（7106KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载