Evolution of tooth crown shape in Mesozoic birds, and its adaptive significance with respect to diet

doi:10.1016/j.palwor.2020.12.008

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	Evolution of tooth crown shape in Mesozoic birds, and its adaptive significance with respect to diet
	Zhou, Ya-Chun 4,5; Sullivan, Corwin 2,3; Zhou, Zhong-He 5; Zhang, Fu-Cheng 1
刊名	PALAEOWORLD
	2021-12-01
卷号	30 期号:4 页码:724-736
关键词	Mesozoic birds tooth shape diet feeding behavior geometric morphometric methods phylogenetic comparative methods
ISSN号	1871-174X
DOI	10.1016/j.palwor.2020.12.008
通讯作者	Zhou, Zhong-He(zhouzhonghe@ivpp.ac.cn) ; Zhang, Fu-Cheng(zhangfucheng@lyu.edu.cn)
英文摘要	Both the evolution of tooth morphology and the relationship between dental features and diet in toothed birds have long been studied. Here we quantify variation in tooth crown shape in 28 key Mesozoic bird species, and examine differences in dental morphology among birds belonging to different taxonomic groupings and inferred to have had different diets. Using geometric morphometric methods (GMM) and phylogenetic comparative methods (PCM), we found few clear differences in tooth crown shape between different taxonomic and ecological categories, and our analysis provides little support for many dietary inferences drawn in previous studies. However, the Solnhofen Archaeopteryx, Jeholornis, Protopteryx, Pengornis, Longipteryx, Tianyuornis, Mengciusornis, Ichthyornis and Hesperornis all were found to possess relatively specialized tooth crown shapes, perhaps reflecting specialized diets such as insectivory, granivory, piscivory and consumption of soft-shelled arthropods. Similarity in tooth crown shape across many Mesozoic birds may indicate the lack of dietary specialization, and the association between tooth form and diet may have been weakened in any case by 'functional replacement' of the dentition by a horny beak and, in many cases, gastroliths. (C) 2020 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.
资助项目	National Natural Science Foun-dation of China[41125008] ; National Natural Science Foun-dation of China[41688103] ; Linyi University[LYDX2016BS084] ; Chinese Academy of Sciences[KZCX2-EW-105]
WOS关键词	PHYLOGENETIC SIGNAL ; CHINA ; TEETH ; SPECIALIZATION ; INFORMATION ; MORPHOLOGY ; PATTERNS ; FOSSIL ; SKULL ; ARCHAEOPTERYX
WOS研究方向	Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000721720400001
资助机构	National Natural Science Foun-dation of China ; Linyi University ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/19201]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Zhou, Zhong-He; Zhang, Fu-Cheng
作者单位	1.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 2.Philip J Currie Dinosaur Museum, Wembley, AB T0H 3S0, Canada 3.Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Ya-Chun,Sullivan, Corwin,Zhou, Zhong-He,et al. Evolution of tooth crown shape in Mesozoic birds, and its adaptive significance with respect to diet[J]. PALAEOWORLD,2021,30(4):724-736.
APA	Zhou, Ya-Chun,Sullivan, Corwin,Zhou, Zhong-He,&Zhang, Fu-Cheng.(2021).Evolution of tooth crown shape in Mesozoic birds, and its adaptive significance with respect to diet.PALAEOWORLD,30(4),724-736.
MLA	Zhou, Ya-Chun,et al."Evolution of tooth crown shape in Mesozoic birds, and its adaptive significance with respect to diet".PALAEOWORLD 30.4(2021):724-736.