Origin of the avian predentary and evidence of a unique form of cranial kinesis in Cretaceous ornithuromorphs
文献类型：期刊论文
| 作者 | Bailleul, Alida M.1,2; Li, Zhiheng1,2 ; O'Connor, Jingmai1,2; Zhou, Zhonghe1,2
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| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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| 出版日期 | 2019-12-03 |
| 卷号 | 116期号:49页码:24696-24706 |
| 关键词 | predentary birds sesamoid kinesis proprioception |
| ISSN号 | 0027-8424 |
| DOI | 10.1073/pnas.1911820116 |
| 通讯作者 | Bailleul, Alida M.(alida.bailleul@ivpp.ac.cn) ; Zhou, Zhonghe(zhouzhonghe@ivpp.ac.cn) |
| 英文摘要 | The avian predentary is a small skeletal structure located rostra! to the paired dentaries found only in Mesozoic ornithuromorphs. The evolution and function of this enigmatic element is unknown. Skeletal tissues forming the predentary and the lower jaws in the basal ornithuromorph Yanornis martini are identified using computed-tomography, scanning electron microscopy, and histology. On the basis of these data, we propose hypotheses for the development, structure, and function of this element. The predentary is composed of trabecular bone. The convex caudal surface articulates with rostromedial concavities on the dentaries. These articular surfaces are covered by cartilage, which on the dentaries is divided into 3 discrete patches: 1 rostral articular cartilage and 2 symphyseal cartilages. The mechanobiology of avian cartilage suggests both compression and kinesis were present at the predentary-dentary joint, therefore suggesting a yet unknown form of avian cranial kinesis. Ontogenetic processes of skeletal formation occurring within extant taxa do not suggest the predentary originates within the dentaries, nor Meckel's cartilage. We hypothesize that the predentary is a biomechanically induced sesamoid that arose within the soft connective tissues located rostra! to the dentaries. The mandibular canal hosting the alveolar nerve suggests that the dentary teeth and predentary of Yanomis were proprioceptive. This whole system may have increased foraging efficiency. The Mesozoic avian predentary apparently coevolved with an edentulous portion of the premaxilla, representing a unique kinetic morphotype that combined teeth with a small functional beak and persisted successfully for similar to 60 million years. |
| WOS关键词 | SECONDARY CARTILAGE ; ORNITHURINE BIRD ; EVOLUTION ; BONE ; MOVEMENT ; HOMOLOGY ; SKELETON ; SKULL ; MORPHOLOGY ; MOTILITY |
| 资助项目 | Chinese Academy of Sciences-President's International Fellowship Initiative program ; Craton destruction and terrestrial life evolution program of the National Natural Science Foundation of China[41688103] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000500804600049 |
| 出版者 | NATL ACAD SCIENCES |
| 资助机构 | Chinese Academy of Sciences-President's International Fellowship Initiative program ; Craton destruction and terrestrial life evolution program of the National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://119.78.100.205/handle/311034/16759]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Bailleul, Alida M.; Zhou, Zhonghe |
| 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, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bailleul, Alida M.,Li, Zhiheng,O'Connor, Jingmai,et al. Origin of the avian predentary and evidence of a unique form of cranial kinesis in Cretaceous ornithuromorphs[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(49):24696-24706. |
| APA | Bailleul, Alida M.,Li, Zhiheng,O'Connor, Jingmai,&Zhou, Zhonghe.(2019).Origin of the avian predentary and evidence of a unique form of cranial kinesis in Cretaceous ornithuromorphs.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(49),24696-24706. |
| MLA | Bailleul, Alida M.,et al."Origin of the avian predentary and evidence of a unique form of cranial kinesis in Cretaceous ornithuromorphs".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.49(2019):24696-24706. |
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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