The smallest known specimen of Microraptor (Dinosauria: Dromaeosauridae) from the Jiufotang Formation in northeastern China
文献类型：期刊论文
| 作者 | Wang, Ranwei1,2; Pei, Rui2 |
| 刊名 | HISTORICAL BIOLOGY
 |
| 出版日期 | 2024-08-14 |
| 页码 | 11 |
| 关键词 | Dromaeosauridae Microraptor Jehol Biota Early Cretaceous osteohistology |
| ISSN号 | 0891-2963 |
| DOI | 10.1080/08912963.2024.2385604 |
| 通讯作者 | Pei, Rui(peirui@ivpp.ac.cn) |
| 英文摘要 | The Early Cretaceous Jehol Biota in northeastern China has yielded a diversity of feathered dromaeosaurid dinosaurs and expanded our knowledge of avian origin and flight evolution. However, histology-based ontogenetic references and detailed morphological studies remain limited relative to the abundant fossils. Here, a new specimen of microraptorine from the Lower Cretaceous Jiufotang Formation is described. This specimen includes a nearly complete postcranial skeleton and inferred as a Microraptor based on revised osteological characters. The femoral length of the new specimen is less than 5 cm, making it the smallest dromaeosaurid individual reported from the Jehol Biota until now. Osteohistological analysis reveals that this individual was a juvenile that is less than one-year old. The new specimen provides additional morphological details that are poorly preserved in the other Microraptor specimens, including aspects of the coracoid, ilium, and tail. Additionally, the sacrals and pubic symphysis of the new specimen have respectively fused at the juvenile stage. This phenomenon suggests caution should be taken in using skeletal fusion for assessing the ontogenetic stage of Microraptor specimens, highlighting the importance of histological analysis. |
| WOS关键词 | FEATHERED DINOSAUR ; JEHOL GROUP ; THEROPOD |
| 资助项目 | National Natural Science Foundation of China[42372031] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[41972025] |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001291789800001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.205/handle/311034/23950]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Pei, Rui |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ranwei,Pei, Rui. The smallest known specimen of Microraptor (Dinosauria: Dromaeosauridae) from the Jiufotang Formation in northeastern China[J]. HISTORICAL BIOLOGY,2024:11. |
| APA | Wang, Ranwei,&Pei, Rui.(2024).The smallest known specimen of Microraptor (Dinosauria: Dromaeosauridae) from the Jiufotang Formation in northeastern China.HISTORICAL BIOLOGY,11. |
| MLA | Wang, Ranwei,et al."The smallest known specimen of Microraptor (Dinosauria: Dromaeosauridae) from the Jiufotang Formation in northeastern China".HISTORICAL BIOLOGY (2024):11. |
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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