Tooth Structure and Replacement of the Triassic Keichousaurus (Sauropterygia, Reptilia) From South China

doi:10.3389/fevo.2021.741851

IVPP-IR > 中科院古脊椎所（2000年以后）

	Tooth Structure and Replacement of the Triassic Keichousaurus (Sauropterygia, Reptilia) From South China
	Liao, Jun-ling 1,2; Lan, Tian 1; Xu, Guang-hui3,4 ; Li, Ji 1; Qin, Yan-jiao 5; Zhao, Ming-sheng 6; Li, Yu-lan 1; Wang, Yue 1
	2021-12-09
发表期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
卷号	9 页码:13
通讯作者	Lan, Tian(lantianing@sina.com) ; Wang, Yue(gzyuewang@126.com)
摘要	The small-sized sauropterygian Keichousaurus hui was one of the most abundant marine reptiles from the Triassic Yangtze Sea in South China. Although Keichousaurus has been studied in many aspects, including the osteology, ontogeny, sexual dimorphism, and reproduction, the dentition of this marine reptile was only briefly described in external morphology. In this study, we provide new information on Keichousaurus tooth implantation, histology, and replacement based on a detailed examination of well-preserved specimens collected in the past decades. The tooth histology has been investigated for the first time by analyzing cross-sections of premaxillary teeth and the tooth attachment and implantation have been further revealed by X-ray computed microtomography. We refer the tooth replacement of Keichousaurus to the iguanid replacement type on the basis of the observed invasion of small replacement tooth into the pulp cavity of the functional tooth. Given the resemblance to other extinct and modern piscivorous predators in the morphology and structure of teeth, Keichousaurus might mainly feed on small or juvenile fishes and some relatively soft-bodied invertebrates (e.g., mysidacean shrimps) from the same ecosystem.
关键词	pulp cavity plicidentine tooth replacement Keichousaurus Triassic South China
DOI	10.3389/fevo.2021.741851
关键词[WOS]	GENE-RELATED PEPTIDE ; RAT MOLAR PULP ; DENTAL-PULP ; SEXUAL-DIMORPHISM ; GUIZHOU PROVINCE ; MARINE REPTILES ; HUI REPTILIA ; DENTITION ; ANATOMY ; INFORMATION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41762001] ; National Natural Science Foundation of China[41902003] ; Guizhou Science and Technology Project[2017-5788] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB 26000000] ; Natural Science Foundation of Guizhou[20171057]
项目资助者	National Natural Science Foundation of China ; Guizhou Science and Technology Project ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Natural Science Foundation of Guizhou
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000738704100001
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/311034/21506
专题	中科院古脊椎所（2000年以后）
通讯作者	Lan, Tian; Wang, Yue
作者单位	1.Guizhou Univ, Coll Resource & Environm Engn, Minist Educ, Key Lab Karst Georesources & Environm, Guiyang, Peoples R China 2.Xingyi Normal Univ Nationalities, Coll Econom & Management, Xingyi, Peoples R China 3.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 4.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 5.Guizhou Geol Museum, Res Dept Sci & Technol, Guiyang, Peoples R China 6.Shenyang Normal Univ, Coll Paleontol, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Liao, Jun-ling,Lan, Tian,Xu, Guang-hui,et al. Tooth Structure and Replacement of the Triassic Keichousaurus (Sauropterygia, Reptilia) From South China[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2021,9:13.
APA	Liao, Jun-ling.,Lan, Tian.,Xu, Guang-hui.,Li, Ji.,Qin, Yan-jiao.,...&Wang, Yue.(2021).Tooth Structure and Replacement of the Triassic Keichousaurus (Sauropterygia, Reptilia) From South China.FRONTIERS IN ECOLOGY AND EVOLUTION,9,13.
MLA	Liao, Jun-ling,et al."Tooth Structure and Replacement of the Triassic Keichousaurus (Sauropterygia, Reptilia) From South China".FRONTIERS IN ECOLOGY AND EVOLUTION 9(2021):13.