Testing for a dietary shift in the Early Cretaceous ceratopsian dinosaur Psittacosaurus lujiatunensis
文献类型：期刊论文
| 作者 | Landi, Damiano2; King, Logan2; Zhao, Qi1,2; Rayfield, Emily J.2; Benton, Michael J.2; Porro, Laura2 |
| 刊名 | PALAEONTOLOGY
 |
| 出版日期 | 2021-03-21 |
| 页码 | 14 |
| 关键词 | jaw mechanics lever system diet dietary shift ceratopsian Cretaceous |
| ISSN号 | 0031-0239 |
| DOI | 10.1111/pala.12529 |
| 通讯作者 | King, Logan(logan.king@bristol.ac.uk) |
| 英文摘要 | Many dinosaurs may have shown ecological differentiation between hatchlings and adults, possibly because of the great size differential. The basal ceratopsian Psittacosaurus lujiatunensis is known from thousands of specimens from the Lower Cretaceous of China and these include many so-called 'juvenile clusters.' During the early stages of ontogeny, P. lujiatunensis underwent a posture shift from quadrupedal to bipedal, and a dietary shift has also been postulated. In this study, we made a 2D mechanical analysis of the jaws of a hatchling and an adult to determine the differences between the two systems; we found some differences, but these were only modest. The adult was better suited to feeding on tough plant material than the hatchling, based on its higher values of absolute and relative bite forces and higher values of mechanical advantage, but there were no substantial shifts in jaw shape or function. |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000630959700001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.205/handle/311034/18634]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | King, Logan |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing 100044, Peoples R China 2.Univ Bristol, Sch Earth Sci, Queens Rd, Bristol BS8 1RJ, Avon, England |
| 推荐引用方式 GB/T 7714 | Landi, Damiano,King, Logan,Zhao, Qi,et al. Testing for a dietary shift in the Early Cretaceous ceratopsian dinosaur Psittacosaurus lujiatunensis[J]. PALAEONTOLOGY,2021:14. |
| APA | Landi, Damiano,King, Logan,Zhao, Qi,Rayfield, Emily J.,Benton, Michael J.,&Porro, Laura.(2021).Testing for a dietary shift in the Early Cretaceous ceratopsian dinosaur Psittacosaurus lujiatunensis.PALAEONTOLOGY,14. |
| MLA | Landi, Damiano,et al."Testing for a dietary shift in the Early Cretaceous ceratopsian dinosaur Psittacosaurus lujiatunensis".PALAEONTOLOGY (2021):14. |
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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