Juvenile-only clusters and behaviour of the Early Cretaceous dinosaur Psittacosaurus
文献类型：期刊论文
| 作者 | Zhao, Qi1,2; Benton, Michael J.1; Xu, Xing2 ; Sander, P. Martin3
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| 刊名 | ACTA PALAEONTOLOGICA POLONICA
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 59期号:4页码:827-833 |
| 关键词 | Dinosauria Ceratopsia Juvenile-only Mixed-age Bone Histology Cretaceous |
| 文献子类 | Article |
| 英文摘要 | It has hitherto been hard to prove that any association of juvenile dinosaurs represents original behaviour rather than sedimentary accumulation, and it has been hard also to determine the ages of such juveniles. A previously described specimen, which consists of an "adult" Psittacosaurus with 34 fully articulated juveniles, turns out to be a composite: the "adult" skull probably has been added, and in any case it is below breeding age. Other juvenile-only clusters have been reported, but the best examples that likely reflect behaviour rather than sedimentary accumulation are specimens from the Early Cretaceous Lujiatun beds in NE China, which were entombed beneath pyroclastic flow deposits. A remarkable juvenile-only cluster of Psittacosaurus shows clear evidence of different ages (five 2-year olds and one 3-year old) based on bone histological analysis. These juveniles may have associated together as a close-knit, mixed-age herd either for protection, to enhance their foraging, or as putative helpers at the parental nest. |
| WOS关键词 | LONG-BONE HISTOLOGY ; GREGARIOUS BEHAVIOR ; SEXUAL SEGREGATION ; GROWTH ; CHINA ; AGE ; VERTEBRATES ; EVOLUTION ; PHYSIOLOGY ; HISTORY |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000346613800008 |
| 源URL | [http://124.16.247.212/handle/311034/7394]  |
| 专题 | 古脊椎动物与古人类研究所_古低等脊椎动物研究室 |
| 作者单位 | 1.Univ Bristol, Sch Earth Sci, Bristol BS8 1RJ, Avon, England 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Labora Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 3.Univ Bonn, Steinmann Inst, Div Paleontol, D-53115 Bonn, Germany |
| 推荐引用方式 GB/T 7714 | Zhao, Qi,Benton, Michael J.,Xu, Xing,et al. Juvenile-only clusters and behaviour of the Early Cretaceous dinosaur Psittacosaurus[J]. ACTA PALAEONTOLOGICA POLONICA,2014,59(4):827-833. |
| APA | Zhao, Qi,Benton, Michael J.,Xu, Xing,&Sander, P. Martin.(2014).Juvenile-only clusters and behaviour of the Early Cretaceous dinosaur Psittacosaurus.ACTA PALAEONTOLOGICA POLONICA,59(4),827-833. |
| MLA | Zhao, Qi,et al."Juvenile-only clusters and behaviour of the Early Cretaceous dinosaur Psittacosaurus".ACTA PALAEONTOLOGICA POLONICA 59.4(2014):827-833. |
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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