Medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils
文献类型：期刊论文
| 作者 | O'Connor, Jingmai1,2 ; Erickson, Gregory M.3; Norell, Mark4; Bailleul, Alida M.1,2; Hu, Han5; Zhou, Zhonghe1,2
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| 刊名 | NATURE COMMUNICATIONS
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| 出版日期 | 2018-12-05 |
| 卷号 | 9页码:8 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/s41467-018-07621-z |
| 通讯作者 | O'Connor, Jingmai(jingmai@ivpp.ac.cn) |
| 英文摘要 | Medullary bone is an ephemeral type of bone tissue, today found only in sexually mature female birds, that provides a calcium reservoir for eggshell formation. The presence of medullary bone-like tissues in extant birds, pterosaurs, and dinosaurs distantly related to birds shows that caution must be exercised before concluding that fossils bear medullary bone. Here we describe a new specimen of pengornithid enantiornithine from the Lower Cretaceous Jiufotang Formation. Consisting of an isolated left hindlimb, the three-dimensional preservation contrasts with the crushed preservation characteristic of most Jehol specimens. Histological examinations suggest this resulted from the presence of a thick layer of highly vascular bone spanning the medullary cavities of the femur and tibiotarsus, consistent with expectations for medullary bone in extant birds. Micro-computed tomographic scans reveal small amounts of the same tissue extending into the pedal phalanges. We consider the tissue to be homologous to the medullary bone of Neornithines. |
| WOS关键词 | SEXUAL-MATURITY ; HISTOLOGY ; EVOLUTION ; CALCIFICATION ; DINOSAURS ; REVEALS ; TISSUES |
| 资助项目 | National Natural Science Foundation of China[41688103] ; NSF[EAR 0207744] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000452196200002 |
| 出版者 | NATURE PUBLISHING GROUP |
| 资助机构 | National Natural Science Foundation of China ; NSF |
| 源URL | [http://119.78.100.205/handle/311034/9171]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | O'Connor, Jingmai |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 10010, Peoples R China 3.Florida State Univ, Dept Biol Sci, B-157, Tallahassee, FL 32306 USA 4.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 5.Univ New England, Zool, Armidale, NSW 2351, Australia |
| 推荐引用方式 GB/T 7714 | O'Connor, Jingmai,Erickson, Gregory M.,Norell, Mark,et al. Medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils[J]. NATURE COMMUNICATIONS,2018,9:8. |
| APA | O'Connor, Jingmai,Erickson, Gregory M.,Norell, Mark,Bailleul, Alida M.,Hu, Han,&Zhou, Zhonghe.(2018).Medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils.NATURE COMMUNICATIONS,9,8. |
| MLA | O'Connor, Jingmai,et al."Medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils".NATURE COMMUNICATIONS 9(2018):8. |
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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