Comparative microstructural study on the teeth of Mesozoic birds and non-avian dinosaurs
文献类型：期刊论文
| 作者 | Wang, Yan7,8; Li, Zhiheng6 ; Wang, Chun-Chieh4,5; Bailleul, Alida M. M.6; Wang, Min6; O'Connor, Jingmai3; Li, Jinhua2; Zheng, Xiaoting7; Pei, Rui6; Teng, Fangfang1
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| 刊名 | ROYAL SOCIETY OPEN SCIENCE
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| 出版日期 | 2023-05-17 |
| 卷号 | 10期号:5页码:13 |
| ISSN号 | 2054-5703 |
| 关键词 | bird non-avian dinosaur diet tooth dentin enamel |
| DOI | 10.1098/rsos.230147 |
| 通讯作者 | Li, Zhiheng(lizhiheng@ivpp.ac.cn) |
| 英文摘要 | Although it is commonly considered that, in birds, there is a trend towards reduced dentition, teeth persisted in birds for 90 Ma and numerous macroscopic morphologies are observed. However, the extent to which the microstructure of bird teeth differs from other lineages is poorly understood. To explore the microstructural differences of the teeth of birds in comparison with closely related non-avialan dinosaurs, the enamel and dentine-related features were evaluated in four Mesozoic paravian species from the Yanliao and Jehol biotas. Different patterns of dentinal tubular tissues with mineralized extensions of the odontoblast processes were revealed through the examination of histological sectioning under electron microscopy. Secondary modification of the tubular structures, forming reactive sclerotic dentin of Longipteryx, and the mineralization of peritubular dentin of Sapeornis were observed in the mantle dentin region. The new observed features combined with other dentinal-associated ultrastructure suggest that the developmental mechanisms controlling dentin formation are quite plastic, permitting the evolution of unique morphologies associated with specialized feeding behaviours in the toothed birds. Proportionally greater functional stress placed on the stem bird teeth may have induced reactive dentin mineralization, which was observed more often within tubules of these taxa. This suggests modifications to the dentin to counteract potential failure. |
| WOS关键词 | MECHANICAL-PROPERTIES ; CRETACEOUS BIRD ; CHINA ; PATTERNS ; EVOLUTION ; THEROPOD |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC |
| WOS记录号 | WOS:000992496200004 |
| 源URL | [http://119.78.100.205/handle/311034/22695]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Li, Zhiheng |
| 作者单位 | 1.Xinghai Paleontol Museum Dalian, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci IGGCAS, Inst Geol & Geophys, Innovat Acad Earth Sci, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Field Museum Nat Hist, Negaunee Integrat Res Ctr, Chicago, IL 60605 USA 4.Natl Taiwan Univ, Dept Geosci, Taipei 10617, Taiwan 5.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xi Zhi Men Wai St, Beijing 100044, Peoples R China 7.Tianyu Nat Hist Museum Shandong, Pingyi 273300, Shandong, Peoples R China 8.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yan,Li, Zhiheng,Wang, Chun-Chieh,et al. Comparative microstructural study on the teeth of Mesozoic birds and non-avian dinosaurs[J]. ROYAL SOCIETY OPEN SCIENCE,2023,10(5):13. |
| APA | Wang, Yan.,Li, Zhiheng.,Wang, Chun-Chieh.,Bailleul, Alida M. M..,Wang, Min.,...&Zhou, Zhonghe.(2023).Comparative microstructural study on the teeth of Mesozoic birds and non-avian dinosaurs.ROYAL SOCIETY OPEN SCIENCE,10(5),13. |
| MLA | Wang, Yan,et al."Comparative microstructural study on the teeth of Mesozoic birds and non-avian dinosaurs".ROYAL SOCIETY OPEN SCIENCE 10.5(2023):13. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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