{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Hu J"],"funding":["National Natural Science Foundation of China","International Partnership Program of Chinese Academy of Sciences"],"pagination":["e76676"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9068210"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["11"],"pubmed_abstract":["The dental system of ceratopsids is among the most specialized structure in Dinosauria by the presence of tooth batteries and high-angled wear surfaces. However, the origin of this unique dental system is poorly understood due to a lack of relevant knowledge in early-diverging ceratopsians. Here, we study the dental system of three earliest-diverging Chinese ceratopsians: <i>Yinlong</i> and <i>Hualianceratops</i> from the early Late Jurassic of Xinjiang and <i>Chaoyangsaurus</i> from the Late Jurassic of Liaoning Province. By micro-computed tomographic analyses, our study has revealed significant new information regarding the dental system, including no more than five replacement teeth in each jaw quadrant; at most one replacement tooth in each alveolus; nearly full resorption of the funct"],"journal":["eLife"],"pubmed_title":["Computed tomographic analysis of the dental system of three Jurassic ceratopsians and implications for the evolution of tooth replacement pattern and diet in early-diverging ceratopsians."],"pmcid":["PMC9068210"],"funding_grant_id":["42072008","132311KYSB20180016","42288201 and 41688103","41972021"],"pubmed_authors":["He Y","Hu J","Zhao Q","Xu X","Forster CA","Han F"],"additional_accession":[]},"is_claimable":false,"name":"Computed tomographic analysis of the dental system of three Jurassic ceratopsians and implications for the evolution of tooth replacement pattern and diet in early-diverging ceratopsians.","description":"The dental system of ceratopsids is among the most specialized structure in Dinosauria by the presence of tooth batteries and high-angled wear surfaces. However, the origin of this unique dental system is poorly understood due to a lack of relevant knowledge in early-diverging ceratopsians. Here, we study the dental system of three earliest-diverging Chinese ceratopsians: <i>Yinlong</i> and <i>Hualianceratops</i> from the early Late Jurassic of Xinjiang and <i>Chaoyangsaurus</i> from the Late Jurassic of Liaoning Province. By micro-computed tomographic analyses, our study has revealed significant new information regarding the dental system, including no more than five replacement teeth in each jaw quadrant; at most one replacement tooth in each alveolus; nearly full resorption of the funct","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Apr","modification":"2026-05-09T21:49:03.817Z","creation":"2025-04-04T10:01:43.846Z"},"accession":"S-EPMC9068210","cross_references":{"pubmed":["35441592"],"doi":["10.7554/eLife.76676"]}}