A new adult specimen of the basalmost ornithuromorph bird Archaeorhynchus spathula (Aves: Ornithuromorpha) and its implications for early avian ontogeny
文献类型：期刊论文
| 作者 | Wang, Min1,2; Zhou, Zhonghe1
|
| 刊名 | JOURNAL OF SYSTEMATIC PALAEONTOLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 15期号:1页码:1-18 |
| 关键词 | Aves Cretaceous Histology Ontogeny Ornithuromorpha Tarsometatarsus |
| DOI | 10.1080/14772019.2015.1136968 |
| 文献子类 | Article |
| 英文摘要 | Most living birds characteristically grow rapidly and reach adult size within a year. Nevertheless, little is known about how such an advanced developmental strategy evolved despite many discoveries of early fossil birds. Here we assess the long-bone histology from a new adult specimen of Archaeorhynchus spathula, the basalmost taxon of Ornithuromorpha. Ornithuromorpha is the most inclusive clade containing extant birds but not the Mesozoic Enantiornithes. Histological analysis reveals that the cortex is composed of parallel-fibred bone with three lines of arrested growth, indicative of slow and annually interrupted growth for this taxon. Such bone histology is significantly different from that of other known basal ornithuromorphs, but resembles that of enantiornithines, which leads us to suggest protracted slow growth in the common ancestor of Ornithuromorpha and Enantiornithes. The fusion sequence of the tarsometatarsus between Enantiornithes and Ornithuromorpha has long been hypothesized to be different and regarded as indicative that enantiornithines are not close relatives of ornithuromorphs. Due to a lack of fossils recording early ontogenetic stages, little is known about the development of the tarsometatarsus in basal ornithuromorphs, making this hypothesis impossible to test. Here we show that the fusion sequence of the tarsometatarsus in Archaeorhynchus is similar to that of enantiornithines, and that the proximal-early fusion in tarsometatarsus represents a plesiomorphic trait for basal birds. Our findings also shed light on ontogenetic variation of sternal morphology, which highlights the importance of ontogeny in the taxonomic and phylogenetic study of early birds. |
| WOS关键词 | COTURNIX-COTURNIX-JAPONICA ; BONE MICROSTRUCTURE ; OSSIFICATION SEQUENCE ; ENANTIORNITHINE BIRD ; SKELETAL DEVELOPMENT ; GROWTH-RATES ; LEG SKELETON ; JEHOL BIOTA ; CHINA ; EVOLUTION |
| WOS研究方向 | Evolutionary Biology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000390346400001 |
| 资助机构 | National Basic Research Program of China 973 Program(2012CB821906) |
| 源URL | [http://124.16.247.212/handle/311034/7531]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 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.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Min,Zhou, Zhonghe. A new adult specimen of the basalmost ornithuromorph bird Archaeorhynchus spathula (Aves: Ornithuromorpha) and its implications for early avian ontogeny[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2017,15(1):1-18. |
| APA | Wang, Min,&Zhou, Zhonghe.(2017).A new adult specimen of the basalmost ornithuromorph bird Archaeorhynchus spathula (Aves: Ornithuromorpha) and its implications for early avian ontogeny.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,15(1),1-18. |
| MLA | Wang, Min,et al."A new adult specimen of the basalmost ornithuromorph bird Archaeorhynchus spathula (Aves: Ornithuromorpha) and its implications for early avian ontogeny".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 15.1(2017):1-18. |
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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