Stable Isotopes Reveal Rapid Enamel Elongation (Amelogenesis) Rates for the Early Cretaceous Iguanodontian Dinosaur Lanzhousaurus magnidens
文献类型：期刊论文
| 作者 | Suarez, Celina A.1; You, Hai-Lu2,3; Suarez, Marina B.4; Li, Da-Qing5; Trieschmann, J. B.1 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2017-11-10 |
| 卷号 | 7 |
| DOI | 10.1038/s41598-017-15653-6 |
| 文献子类 | Article |
| 英文摘要 | Lanzhousaurus magnidens, a large non-hadrosauriform iguanodontian dinosaur from the Lower Cretaceous Hekou Group of Gansu Province, China has the largest known herbivorous dinosaur teeth. Unlike its hadrosauriform relatives possessing tooth batteries of many small teeth, Lanzhousaurus utilized a small number (14) of very large teeth (similar to 10 cm long) to create a large, continuous surface for mastication. Here we investigate the significance of Lanzhousaurus in the evolutionary history of iguanodontian-hadrosauriform transition by using a combination of stable isotope analysis and CT imagery. We infer that Lanzhousaurus had a rapid rate of tooth enamel elongation or amelogenesis at 0.24 mm/day with dental tissues common to other Iguanodontian dinosaurs. Among ornithopods, high rates of amelogenesis have been previously observed in hadrosaurids, where they have been associated with a sophisticated masticatory apparatus. These data suggest rapid amelogenesis evolved among non-hadrosauriform iguanodontians such as Lanzhousaurus, representing a crucial step that was exapted for the evolution of the hadrosaurian feeding mechanism. |
| WOS关键词 | TOOTH ENAMEL ; FOSSIL RECORD ; PHOSPHATE ; ECOLOGY ; SEASONALITY ; EVOLUTION ; APATITE ; LINES ; WATER |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000414917800059 |
| 资助机构 | University of Kansas Department of Geosciences ; University of Arkansas Sponsored Research Programs ; CIMA LSAMP research program ; National Natural Science Foundation of China(41688103 ; 41472020) |
| 源URL | [http://124.16.247.212/handle/311034/7993]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 作者单位 | 1.Univ Arkansas, Dept Geosci, 216 Gearhart Hall, Fayetteville, AR 72701 USA 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai Ave, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 4.Univ Texas San Antonio, Dept Geol Sci, San Antonio, TX 78249 USA 5.Gansu Agr Univ, Inst Vertebrate Paleontol, 1 Yingmencun, Lanzhou 730070, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Suarez, Celina A.,You, Hai-Lu,Suarez, Marina B.,et al. Stable Isotopes Reveal Rapid Enamel Elongation (Amelogenesis) Rates for the Early Cretaceous Iguanodontian Dinosaur Lanzhousaurus magnidens[J]. SCIENTIFIC REPORTS,2017,7. |
| APA | Suarez, Celina A.,You, Hai-Lu,Suarez, Marina B.,Li, Da-Qing,&Trieschmann, J. B..(2017).Stable Isotopes Reveal Rapid Enamel Elongation (Amelogenesis) Rates for the Early Cretaceous Iguanodontian Dinosaur Lanzhousaurus magnidens.SCIENTIFIC REPORTS,7. |
| MLA | Suarez, Celina A.,et al."Stable Isotopes Reveal Rapid Enamel Elongation (Amelogenesis) Rates for the Early Cretaceous Iguanodontian Dinosaur Lanzhousaurus magnidens".SCIENTIFIC REPORTS 7(2017). |
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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