Bone histology and growth curve of the earliest ceratopsian Yinlong downsi from the Upper Jurassic of Junggar Basin, Northwest China
文献类型：期刊论文
| 作者 | Han, Fenglu1; Zhao, Qi2; Hu, Jinfeng1; Xu, Xing2,3 |
| 刊名 | PEERJ
 |
| 出版日期 | 2024-12-19 |
| 卷号 | 12期号:1页码:28 |
| 关键词 | Bone histology Dinosaur Ceratopsia Jurassic Junggar Basin China Yinlong Growth curve |
| ISSN号 | 2167-8359 |
| DOI | 10.7717/peerj.18761 |
| 英文摘要 | Yinlong downsi, the earliest known ceratopsian, is represented by dozens of specimens of different sizes collected from the Upper Jurassic of the Junggar Basin, northwestern China. Here, we present the first comprehensive study on the bone histology of Yinlong downsi based on ten specimens varying in size. Four ontogenetic stages are recognized: early juvenile, late juvenile, subadult, and adult. The reconstructed growth curve suggests that Yinlong may reach sexual maturity at 6 years old, which is earlier than that of the well-studied early-diverging ceratopsian Psittacosaurus (9 years old) but later than ceratopsids (about 3 to 5 years old). This may indicate that sexual maturity begins earlier during the evolution of ceratopsians, and that the giant size of ceratopsids is acquired by accelerating growth rates. The cortex of the tibia mainly consists of fibrolamellar bone tissues, but parallel-fibered bone and lines of arrested growth (LAGs) are very common throughout ontogeny, suggesting a moderate growth rate. Quantitative analysis indicates that Yinlong has a maximum growth rate similar to those of other small-sized dinosaurs such as Psittacosaurus, Dysalotosaurus, and Troodon, and their maximum growth rates are higher than those of extant squamates and crocodiles but lower than those of extant mammals and large dinosaurs. This suggests that body size plays a more important role in growth rate than other factors such as phylogenetic position and/or diet among non-avian dinosaurs. |
| WOS关键词 | GANSU PROVINCE ; NEOCERATOPSIAN DINOSAUR ; AURORACERATOPS-RUGOSUS ; BODY-SIZE ; ORNITHISCHIA CERATOPSIA ; DETERMINATE GROWTH ; EARLY EVOLUTION ; DYNAMICS ; PATTERNS ; HISTORY |
| 资助项目 | National Natural Science Foundation of China[41972021] ; National Natural Science Foundation of China[42072008] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42272020] ; National Natural Science Foundation of China[42372046] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001438217000009 |
| 出版者 | PEERJ INC |
| 源URL | [http://119.78.100.205/handle/311034/24335]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Han, Fenglu |
| 作者单位 | 1.China Univ Geosci, Sch Earth Sci, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 3.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Fenglu,Zhao, Qi,Hu, Jinfeng,et al. Bone histology and growth curve of the earliest ceratopsian Yinlong downsi from the Upper Jurassic of Junggar Basin, Northwest China[J]. PEERJ,2024,12(1):28. |
| APA | Han, Fenglu,Zhao, Qi,Hu, Jinfeng,&Xu, Xing.(2024).Bone histology and growth curve of the earliest ceratopsian Yinlong downsi from the Upper Jurassic of Junggar Basin, Northwest China.PEERJ,12(1),28. |
| MLA | Han, Fenglu,et al."Bone histology and growth curve of the earliest ceratopsian Yinlong downsi from the Upper Jurassic of Junggar Basin, Northwest China".PEERJ 12.1(2024):28. |
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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