KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Insight into the growth pattern and bone fusion of basal birds from an Early Cretaceous enantiornithine bird | |
| Wang, Min; Li, Zhiheng; Zhou, Zhonghe | |
| 2017-10-24 | |
| 发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 卷号 | 114期号:43页码:11470-11475 |
| 文章类型 | Article |
| 摘要 | Bird skeletons exhibit remarkable modifications that allow for flight. The most distinguishable features are the fusion of the bones in the hand, feet, and pelvis into composite rigid and bony structures. However, the historical origins of these avian bone fusions remain elusive because of the rarity of transitional fossils and developmental studies on modern birds. Here, we describe an Early Cretaceous bird (120 Mya) that has fully fused alular-major metacarpals and pelvis. We discuss the manus and pelvis fusions across Paravian phylogeny and demonstrate that these features evolved independently across nonavian theropods, Enantiornithes, and Ornithuromorpha. The fusions of these bones are rare in known nonavian theropods and Early Cretaceous birds but are well established among Late Cretaceous and modern birds, revealing a complicated evolution pattern unrecognized previously. We posit that the developments of bone fusion were polymorphic close to the origin of birds, resulting in the varying degrees of fusion in Paraves. However, that development polymorphism appears to be fundamentally restricted along the line to modern birds by the Late Cretaceous, where all birds have a completely fused manus and pelvis. Such changes likely correspond to a refinement of flight capability. Alternatively, the degree of bone fusion in this primitive bird may have been related to modifications in genes or developmental paths. Future studies and fossil discoveries are required to clarify these hypotheses and pinpoint the developmental pathways involving the bone fusions in early avian evolution through to their modern pattern. |
| 关键词 | Bone Fusion Bird Cretaceous Histology Development |
| WOS标题词 | Science & Technology |
| DOI | 10.1073/pnas.1707237114 |
| 关键词[WOS] | DEVELOPMENTAL PLASTICITY ; EARLY EVOLUTION ; JEHOL BIOTA ; AVES ; CHINA ; ORIGIN ; PHYLOGENY ; THEROPODA ; DINOSAUR ; SKELETON |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(41502002 ; 41688103) |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000413520700068 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/8040 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 作者单位 | Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Min,Li, Zhiheng,Zhou, Zhonghe. Insight into the growth pattern and bone fusion of basal birds from an Early Cretaceous enantiornithine bird[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(43):11470-11475. |
| APA | Wang, Min,Li, Zhiheng,&Zhou, Zhonghe.(2017).Insight into the growth pattern and bone fusion of basal birds from an Early Cretaceous enantiornithine bird.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(43),11470-11475. |
| MLA | Wang, Min,et al."Insight into the growth pattern and bone fusion of basal birds from an Early Cretaceous enantiornithine bird".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.43(2017):11470-11475. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 11470.full.pdf（1859KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论